Showing posts with label wordpress. Show all posts
Showing posts with label wordpress. Show all posts

Sunday, December 9, 2007

WordPress Robots.txt For SEO

The robots.txt file is used to instruct search engine robots about what pages on your website should be crawled and consequently indexed. Most websites have files and folders that are not relevant for search engines (like images or admin files) therefore creating a robots.txt file can actually improve your website indexation.

Implementing an effective SEO robots.txt file for WordPress will help your blog to rank higher in Search Engines, receive higher paying relevant Ads, and increase your blog traffic.

Here is my robots.txt files, which can further protect WordPress from this duplicate content issue.

User-agent: *
Disallow: /wp-
Disallow: /feed/
Disallow: /trackback/
Disallow: /comments/feed/
Disallow: /page/
Disallow: /comments/


After you created the robots.txt file just upload it to your root directory and you are done!

Friday, December 7, 2007

WordPress MU AdSense Plugin

WordPress MU AdSense Plugin is an easy-to-use plugin for WordPress MU 1.3+ (also including WordPress 2.3+) for quickly inserting Google or Yahoo! ads into all of the WordPress multi-user's blog posts. Wordpress MU allows webmasters to easily integrate Google Adsense inside wordpress using this plugins. Google Adsense has become the most popular online contextual advertising program and proper custom integration with Wordpress can help to increase Adsense earnings.

Installation / Configuration Instructions:

1. Edit wp-adsense.php, replace the Google AdSense code in the plugin with your own customized Google Adsense code.

2. Upload wp-adsense.php to your WordPress plugin directory(not the mu-plugins directory).

3. Download and install a WordPress MU Plugin - Plugin Commander, upload Plugin Commander to mu-plugins directory.

4. Login WordPress MU's Site Admin, click Plugin Commander, find WordPress Adsense plugin and click "Activate all" to mass activate the wordpress adsense plugin.

Download Latest:

Click here to download the latest version of WordPress MU AdSense plugin.

WordPress MU AdSense plugin can display AdSense ads inline with blog posts. Wish you would like this plugin.

Monday, December 3, 2007

WordPress Plugin: MySQL Server Crash Monitor

Since end of October our MySQL Server crashed on or two times a day. We don't no exactly why. Maybe the Databases are to big. We run several WordPress system on this MySQL Server. but the MySQL services often crashed, then my WordPress can't connect to MySQL server and show the error. So I develop this program to monitor the WordPress MySQL server, when the server is down, WordPress will auto send me an e-mail and write to a text log file in a recorded. We can look trough the log file to analysis the MySQL server databse, in order to cantact the host administrators to fix the error.

Here is the source code of the MySQL Server Crash Monitor.


// Change the e-mail address below .
$from = "webmaster@moon-blog.com";
$to = "webmaster@moon-blog.com";
$subject = "MySQL Crashed!";
$body = date("Y-m-d H:i:s");
$headers = 'From: '.$from . "\r\n"
.'Reply-To: '.$from . "\r\n"
.'X-Mailer: PHP/' . phpversion();
mail($to, $subject, $body, $headers);
// Log to file
$filename = 'log.txt';
$somecontent = date("Y-m-d H:i:s");
$somecontent = $somecontent . "\r\n";
if (is_writable($filename)) {
if (!$handle = fopen($filename, 'a')) {
exit;
}
if (!fwrite($handle, $somecontent)) {
exit;
}
fclose($handle);
}


First, upload a file named log.txt to the WordPress root directory, chmod it to 666.

Second, replace the e-mail address of the code to your own e-mail.

Then,opening wp-includes/wp-db.php, find "if (! $ This-> dbh)", 66 lines in WordPress 2.3.1, paste the code after that. Save and upload the file.

Now, When the database lost connection or get problems, WordPress will automatically mail the error message to your mailbox, at the same time the message will be recorded in log.txt document.

Saturday, December 1, 2007

Wordpress Plugin: Keyword Filter

The WordPress keyword filter plugin plugin provided with WordPress. Not like the WordPress Comment Filter Plugin, the Keyword Filter Plugin aim at the post content. Keyword filter plugin works by creating a WordPress filter for the post contents. When the post get displayed, WordPress gives the post content to the  keyword filter plugin and the plugin returns some modified content. Replace the sensitive keyword with specific keyword.

The WordPress keyword plugin support Far East Characters (such as Chinese Characters). You may also create your own keyword filter lists as needed.

Installation / Configuration Instructions:

1. Edit wp-keywordfilter.php to add words that you wish to filter, or change the words that are already listed inside the file.

2. Upload wp-keywordfilter.php to your WordPress plugin directory.

3. Activate the plugin.

Download Latest:

Click here to download the latest version of WordPress keyword filter plugin.

Thursday, November 29, 2007

Wordpress Plugin: Comment Filter

WordPress Comment Filter is a plugin that allows for filtering of bad words used during commenting. Comment filter plugin works by creating a WordPress filter for the comment contents. When the comments get displayed, WordPress gives the comment content to the comment filter plugin and the plugin returns some modified content. Replace the bad word with asterisk. It's The modified version of the "No Shit" plugin, and have the following Features:

1. Well setting of filtering keywords.

2. Support Far East Characters (such as Chinese Characters).

Installation / Configuration Instructions:

1. Edit wp-noshit.php to add words that you wish to filter, or change the words that are already listed inside the file.

2. Upload wp-noshit.php to your WordPress plugin directory.

3. Activate the plugin.

Download Latest:

Click here to download the latest version of WordPress Comment Filter Plugin.

Friday, August 24, 2007

Wordpress Plugin: Chinese PinYin Slug

The Chinese PinYin Slug Wordpress plugin convert Chinese UTF-8 character into English PinYin character from a post slugs to improve  search engine optimization.
For example, when you publish a post with a title like this:
"Chinese PinYin"
Wordpress automatically assigns a long filename to your post, called a post slug:
/%e4%b8%ad%e6%96%87%e6%8b%bc%e9%9f%b3
PinYin Slug plugin convert Chinese character into PinYin character. With Chinese PinYin plugin activated, the slug for our example blog post would look like this:
/zhongwenpinyin
The slug is generated on saving a post (so you get a chance to look at it before publishing, and change it), or on publish. It won't overwrite an existing slug. You can force a new slug generation by deleting the existing one.

Installation

Download the PinYin Plugin and unzip to the '/wp-content/plugins/' directory.  Activate the plugin through the 'Plugins' menu in WordPress. Now, when editing a post, give it a title and press Save and Continue Editing. The PinYin Slug plugin will generate a slug. If you edit it, the plugin will honor your slug and won't change it.

If you find this plugin useful, please, link to this page: Chinese PinYin Slug Wordpress Plugin.

Wednesday, February 1, 2006

Top 50 WordPress Plugins for Multimedia

There’s a lot more to blogging than just writing compelling text. Pictures, video, and audio make your blog more exciting for readers while giving you more ways to express yourself. There are hundreds of plugins available for adding multimedia to your blog and here we take a look at more than 50 of our favorites.

Image Management Tools

Aniga Gallery – Allows you to create picture galleries that use the WordPress comment system.

Batch Image Uploader – Upload and resize multiple images to your blog at once.

Duh Gallery – Simply creates a photo gallery from your uploads folder in WordPress.

ImageManager – Includes interface for browsing and uploading images and basic tools such as cropping and rotating.

WP Image Gallery – Create photo galleries from within WordPress and display them in posts.

fMoblog – Post pictures with descriptions from a mobile phone.

Pop-up Image Gallery – Photo gallery plugin with various options for transitions

PhotoZip – For quickly uploading photos; allows you to simply upload a .zip file to create an image gallery.

PictPress – Automatically generates a picture post from a directory on your server. Resizes pictures on the fly.

Importing Images from Other Services

Another Flickr – Allows your readers to browse thumbnails from your Flickr albums and go directly to full size images.

BubbleShare – Display photo galleries from your BubbleShare account.

Facebook Photos – Shows thumbnails of photos from your linked Facebook account.

Flickr Photo Album – Pulls in your Flickr photo sets and displays them as albums in WordPress.

FlickrRSS – Displays most recent images from any RSS feed from Flickr such as a user, group, or tags page.

Fotobook – Import your Facebook photo albums into a WordPress page.

ImageShack Uploader – Upload an image to ImageShack’s free storage service and insert a thumbnail into your posts.

Slickr Gallery – AJAX photo gallery that pulls in images and photosets from Flickr.

Smugmug Gallery Bar – Insert photos from your Smugmug account into blog posts.

Image Display Effects & Hacks

Enlarger – Displays a thumbnail but loads the bigger image in the background so when clicked the full size version loads instantly.

IImage Panorama – Helps you create a 360 degree panorama picture to add to your blog.

Image Headlines – Create cool text images for the titles of your posts.

Lightbox 2 – Generates thumbnails that when clicked load in a lightbox.

Multi-Topic Icon: Shows images that represent each of the categories assigned to a blog post.

Random Image – Pulls a random image you have places on your blog and links back to the post it came from.

Transparent PNG Fix – Make sure your PNG files don’t look nasty.

WP Wetfloor – Create the ever-popular reflection effect for the images on your blog.

Playing Music

Del.icio.us MP3 Player – Makes links to MP3s in your posts playable and easily postable to del.icio.us.

Audio Player – Inserts a simple MP3 player into your posts that plays uploaded audio files.

XSFP Player – Flash player that allows you to embed music on your blog via http.

What Am I Listening To?

DG PlayingNow Updater – Displays the song you are currently listening to on iTunes, MSN Messenger, or J. River Media Center.

EZ-Scrobbler – Displays your most recently listened to tracks on last.fm.

iTunes Spy – Displays your most recently listened to tracks on iTunes.

Pandora Feeds – Displays data from Pandora feeds, for example, a list of your stations, bookmarked songs, and bookmarked artists.

onAirNow – Now playing plugin that displays most recent song from iTunes or WinAmp.

Podcasting Tools

Odeo – Embed a podcast you’ve recorded on Odeo.

Podcast Release – A “release” form for guests of your podcast, accepting your terms.

PodPress – Full featured plugin for podcasters including feed generation, iTunes preview, and download stats.

iPodCatter – Helps podcasters created a valid feed for the podcast directory on iTunes.

Miscellaneous Audio Tools

Evoca Browser Mic – Allow your blog readers to send you voice comments which you can later post to your blog.

Odiogo – Converts your text to speech and provides a link for your readers to listen to your posts.

Video Tools

Anarchy Media Player – Plays a wide variety of audio/video file formats in the appropriate player on your blog.

Easy Inline SWF – Allows you to insert Flash files in .swf format into your posts without any weird tags.

SeeTheFace – Complete tool for recording video and posting to your blog.

Extreme Video – Plays any .flv file on your blog with support for YouTube, Google Video, Quicktime, and more.

Noembedder – Automatically adds a noembed section to any embedded content that does not already have one.

YouTube Brackets – Allows you to simply enter a URL for a YouTube video versus copying and pasting embed code.

wordTube – Video player that includes the ability to program a menu of videos.

TubePress – Display YouTube galleries as blog posts or a sidebar item.

YouTube Video Gallery – Displays thumbnails for any gallery from YouTube.

vPIP – vPIP stands for “Videos Playing In Place,” meaning it will only embed after a specified image or link is clicked by the user. (via)

Sunday, January 29, 2006

Top 30 Tools For Working With Wordpress Posts

Aside from tweaking the design and installing the occasional plugin, most of the time in your WordPress blog is spent writing and editing posts. In the penultimate post of the WordPress Tips series, we present 30+ tools to help you with everything from saving recurring post layouts to hiding the spoiler at the end of your movie review.

Post Administration & Layout

Add Graphic Signature – Adds a graphic of your signature to your posts either automatically or via the insertion of a simple tag.

Adman – Allows you to post ads such as Google AdSense at the beginning or middle of a post.

Another WordPress Meta Plugin – Allows you to add Meta tags and keywords to your post to try to further optimize your blog for search engines.

Category Remindr – Category Remindr puts a button next to the “Publish” button to remind you to select the categories for your post.

Corrector – Adds Google Spell to your admin area and can spellcheck in 27 languages.

DropCap First Character – Enlarges the first character of a post to give it more of a magazine appearance.

Front Page Excluded Categories – Sometimes you don’t want posts from certain categories on your front landing page, this allows you to exclude them from appearing there.

Limit the size of main page posts – Set the number of words you want each of your main page posts to contain, if they exceed that limit, a link is provided to a page with the complete post.

Notify On Draft Post – Notifies the editor when the authors of a multi-author blog post a new draft for review.

Post Notification – Sends an email to all of the registered Users, who have opted in, when you make a new post. Includes the option to include the post in the email.

Post Repeater – Sometimes you have a post with significance every week, month, or year; this plugin will do it for you with just a few edits.

Post Templates – Allows you to set up repeating templates such as a “Picture Of The Day” and so on without all the tedious copy and pasting.

PostPost – Allows you to add content such as advertisements before or after every post.

Posts Expire – Set an expiration date on your post, after the date passes, it will no longer be displayed.

Subscribers Only – Lets you mark a post as “subscriber only” so they are visible only to members of your site.

Subscribe-Remind – Adds a reminder to the bottom of each post to your readers to subscribe to your RSS feed.

WordPress PDA – Helps your readers view your blog on a PDA browser.

WP-orderposts – As more people use WordPress also as a CMS, sometimes you don’t want your posts in chronological order; this plugin allows you to change it.

WP-Sticky – Sometimes you want a post to always be the first entry for your blog, especially when using WordPress as a makeshift CMS. This plugin does just that by making a post “sticky”.

Post Tools

Auto Link – Use the Google API to set delimiters like [movie]Move Title[/movie] to make it auto link to the page on IMDB. Can set others as you wish.

Author Complete Post List – Gives you the ability to display all the posts by an author, including the ones where they are co-author.

Blog by Mail with Categories – Changes the “Blog by Mail” feature in WordPress so you can also set the category.

Code Markup – Allows you to include snippets of code, including HTML, in your post without it affecting the page.

Easy Post-To-Post Links – Allows you to use a shortcut when writing a post linking to another post on your blog; shows the full hyperlink in the published post.

On This Day – Will display posts posted on the same day in previous years.

Plain Text Paste – Helps to ease the pain of pasting something you wrote in Microsoft Word into WordPress.

TD Word Count – Will display a word count for each post on a blog, and gives you a total count.

Ubernyms – Allows you to make shortcut for terms and links you use often. Just enter the abbreviation and this plugin fills it in for you.

WP-Footnotes – Allows you to add footnotes to a more detailed post.

wpSpoiler – Great for sites that do movie or TV reviews, will allow you so hide text behind [spoiler] tags. (via)

Saturday, January 28, 2006

Top 30 WordPress Plugins To Get More Blog Readers

Gaining blog readers is hard; WordPress makes it much easier. Here are 30+ WordPress plugins to help you garner some of that attention, and then retain readers once they visit.

Crossposting

DJ-Email-Publish – Once you publish on your WordPress blog, this sends the post as an email to your other blogs such as MSN Spaces.

Live Space Sync – Allows you to import all your posts to your Microsoft Live Spaces so you can advertise your blog to your contacts.

LiveJournal Crossposter – Automatically posts your latest entries to your LiveJournal account, or any other LJ software based site.

Vox Crossposter – Makes it so your posts also appear on your Vox account.

Xanga Crosspost – Allows you to have your posts appear on your Xanga account also.

RSS Feed Tools

©Feed – Adds copyright info to your feed and puts a digital fingerprint on it so you can search the web for content theft.

Add to Any Subscribe Button – Allows your readers to subscribe via just about any reader out there.

AddThis Sidebar Widget – Adds RSS info and social bookmarking to the sidebar.

Better Feed – Adds a “read more” button, a copyright notice, and a “Add to del.icio.us” link.

DeCat – Allows you to select certain categories to not be included in your feeds.

Feed Control – Gives you the ability to exclude posts from your feed, add pages and much more.

Feed Footer – Adds copyright and advertising to your RSS posts.

Feed Master – Assigns a number to your feed readers so you get a better idea of stats specific to them.

Feed Styler – Allows you to style your feed.

FeedBurner FeedSmith – Make sure all your RSS feed subscribers get counted along with the ones signed up via FeedBurner.

FeedStats – Gives you statistical data on your feeds.

Feedvertizer – Add text links to the end of your feed posts.

RSS Flashfeeder to Myspace – Feeds your last two posts to your MySpace page.

Slash Comments – Adds info to your feed about how many comments are on the post.

Subscribe-Remind – Adds a little reminder to the end of each post reminding readers to subscribe to your feed.

Social Bookmarking

Digg Button – Allows you to add the Digg button anywhere in a post with just a simple code snippet.

Digg IT – Another plugin allowing inclusion of the Digg button.

JPF Add to Reddit – Allows readers to submit your posts to Reddit, if they are already logged in, it automatically posts the title and URL.

Share This – Adds multiple social bookmarking links and an e-mail-this function in one handy button.

Sociable – Adds the linking information for 61 social bookmarking sites.

Social Bookmark Buttons – Adds social bookmark buttons for Digg.com, Netscape.com, Reddit.com, Del.icio.us, Stumbleupon.com, Google.com, Socialogs.com, and Socialposter.com.

Social Bookmarks Plugin for WordPress – Gives you access to the social bookmarking icons.

Socializer Plugin – Adds the ability to post to nearly 40 social bookmarking sites.

SocialList – Lets you see which of your posts have been submitted to del.icio.us and Digg.

Socialogs.com – Allows you to have your entries submitted to Socialogs.com.

WP-Notable – Adds the icons for numerous social bookmarking sites to each post.

wphotspots – Tracks the activity of your posts on several social bookmarking sites. (via)

Friday, January 27, 2006

Top 50 Tools For The WordPress Admin

Running your WordPress blog can feel like a full-time job sometimes. We’ve compiled an A-Z list of more than 50 plugins to help you streamline everything you need to do out back. As with any plugins list, don’t install them all at once!

404 Notifier – Gives you a log of all your 404 errors so you can see why your readers are ending up on broken pages.Admin Dropdown Menus – Make your crowded admin panel menus neat and orderly by turning them into dropdown menus.

Admin Panel Comment Reply – Adds a “reply to comment” option in the comments section of the admin area.

Ajax Spell Checker – Uses a combination of dictionaries to check your posts.

Auto-hyperlink URLs – Gives you several options for having URLs automatically turn in to hyperlinks.

AWSOM Pixgallery – Designed to allow artists and webcomic creators to create a portfolio of their artwork.

Batch Categories – Adds a page to the category management, showing all the posts that belong to a category making it easier to add to another category, or when using an import tool from another blog.

Custom Admin Menu – Gives you the power to rename, hide or move just about anything you want in the admin area.

Custom Write Panel – Allows you to customize the “Write” panel of WordPress. Hide things you don’t need such as “Post Password” and add things you feel you may need.

Dashbar – Let admins have admin access while working in the frontend of the blog without having multiple windows open.

Dashboard Editor – Ever wanted to change the Dashboard to be more useful? This is the plugin you need.

DashNote – Adds a post-it note feature to the dashboard to jot down notes to yourself.

Digital Fingerprint – Adds a digital fingerprint to your posts so you can search the web to see if your content has been scraped.

Domain Mirror – Will allow one WordPress install to be accessed from multiple domains and will even change the name and URLs based on the address people access it with.

Download Counter – Counts and tracks the downloads of all your files.

Email Users – This plugin allows you to mail registered users on your blog based on their role.

Enforce WWW Preference – Provides 301 redirects to queries with /index.php and enforces your use or non-use of www to make sure your search engine indexing is uniform.

Excerpt Editor – Gives you more control over the excerpts such as length and auto creation.

FeedBurner FeedSmith – Make sure all your RSS feed sbscribers get counted along with the ones signed up via FeedBurner.

Fix Database – Will check your WordPress database for errors and attempt to fix them.

Genki Announcement – Allows you to add an announcement before your first post without editing your themes, can even run on a timer.

Genki Pre-Publish Reminder – Forget to set your categories before you publish? Write yourself a reminder!

Google Analyticator – Inserts Google Analytics on every WordPress page

Google Sitemaps Generator – Will create a Google compliant sitemap of your blog.

GT Post Approval – Adds “Approve” and “Reject” buttons to the administrators view on all posts, very handy for blogs with multiple authors.

Instant Update – Will handle the tedious chore of upgrading your WP install with just one-click.

Just Unzip – Upload a zip folder from the Write page; this plugin unzips the contents and associates them with the current post.

Khanh’s Instant Notepad (KIN) – Allows you to jot notes to yourself on a notepad.

Leprakhauns Word Count – Adds a Java powered word counter to your editing page, very useful for writers working to a word count on professional blogs.

Mass Post Manager – Allows you to move or delete all the posts in a category at once.

Mutliply – Allows you to control multiple blogs from one administrator.

NextGEN Gallery – Adds an image gallery to your control panel and can even add a flash gallery.

OneClick Install – Adds an extremely powerful uploader and installer for plugins and themes to WordPress, eliminates the need to unzip or FTP!

Page Link Manager – Allows you to easily rearrange pages, hide them, and move them at will.

Permacop – Allows you to redirect any URL to another.

Post2Page – Write a post that should really be on permanent display? Turn it in to a page with this plugin and have it handle the URL redirects to boot.

PlugInstaller – Point this plugin to a new plugin you want on the web, it takes care of obtaining it, uploading it and unpacking it.

podPress – Numerous features for bloggers wishing to add podcasts to their WordPress install. Previews, RSS feeds, adding cast to posts, and many, many more.

Search and Replace – Search all your posts at once for specified text, quickly replace it.

Share This – Adds multiple social bookmarking links and an e-mail-this function in one handy button.

Simple Pop-up Images – Add a thumbnail image to your post; when the user clicks on it, they get a larger pop-up of the picture.

Simple Tagging – Simplifies the tagging process to drop down menus, can import from your current tagging plugins.

Site Unavailable – Puts up a message your site is down, customize the message, all the while, the admins can still log in.

Throttle – Monitors your bandwidth and limits non-essential items during heavy load times to help performance.

Wikipedia-NoFollow – Written in response to Wikipedia’s implementing a “nofollow” rule to their outgoing links, a plugin to add nofollow to links you give to Wikipedia pages.

WordPress Mobile Edition – Strips your blog down for easy reading on phones and PDAs.

WordTube – Why use YouTube when you can host and stream your videos as you please? Includes a flash player.

WP Grins – Adds clickable smilies to both the administration area and comments section at once.

WPAds – Add rotating banner and text ads to any position you define in your blog.

WP-Custom Login – Allows you to modify the user login page logo to an image of your choice to allow you to brand your site more completely.

WP- DBManager – Gives you the power to optimize the database, back it up, restore, delete the backup database , drop emptied tables and run selected queries.

WP-phpMyAdmin – Gives you quick access to your PHP databases directly from the WP admin area without haveing to login to phpMyAdmin. Very handy.

WP Plugins Tracker – Will verify all of your plugins are the latest version by checking them against the wp-plugins-db.org database.

WP Super Edit – Gives you more control over the Visual editor including emoticons, layers, style attributes and more.

WP-Table – Allows you to add a table directly in the Visual mode or import from a spreadsheet. (via)

Monday, January 23, 2006

Top 30 Plugins for Wordpress Comments

When working on a WordPress blog, posts often take center stage. However, the comments are often just as important – they create valuable discussion. And yet the default WordPress comment box is simplistic and uninspiring – here are Mashable’s favorite comment-focused WordPress plugins that can eliminate spam, improve the appearance of comments, and add more value to your posts.

Fight Spam

Akismet – Antispam plugin from the creators of WordPress that uses a central database of spam comments to flag spam. Requires a free API key from WordPress.com

Spam Karma – Analyzes comments for spam based on a karma system.

Bad Behavior – Prevents spambots from even accessing your site by analyzing their HTTP requests.

Did You Pass Math? – Asks commenters a simple math question before their comments are posted.

Comment Timeout – Closes comments on old posts.

Encourage Commenting

BlogFollow – Shows a snippet of the commenter’s blog at the bottom of the comment.

DoFollow – Removes “nofollow” attributes from links in comments so search engines can follow them.

DoFollow Trackbacks – Removes “nofollow” attributes from trackbacks

Show Top Commentators
– Lists the most frequent commentators on your blog, along with links to their blogs, in your sidebar.

Improve appearance

Nicer Trackbacks – Improves the appearance of trackbacks from other blogs.

WP-NoSh*t – Filters bad words from comments.

Numbered Comments Adds numbers to comments.

AuthorHighlight – Highlights comments by the blog’s author.

Comment Highlighter – Styles comments based on the author’s name, email, or URL.

wp-chunk – Truncates long URLs in comments to prevent them from stretching the page.

Enable rich comments

Custom Smileys – Adds clickable smiley emoticons to comments.

TinyMCEComments – Turns the comment box into a full-featured rich text editor.

Live Comment Preview – Allows readers to preview their comment before posting.

Edit Comments XT – Lets commentators edit their own comments.

Enable avatars

Gravatar – Displays user-selected avatars from a central database next to comments.

Favatars – Pulls the favicon from a commenter’s blog or website, and uses that for their avatar.

MBLA – Adds user images from MyBlogLog to comments.

OpenID Comments – Lets readers comment with their OpenID identity.

Show off comments

WP-Most Commented Posts – Displays posts with the most comments in the sidebar.

Latest Comments with Avatars Reloaded – Shows the latest comments, along with the MyBlogLog avatars of the commenters.

Allow better conversation

Simple CoComments – Tracks the conversation across blogs.

Comment Karma – Digg-style voting on comments.

Quoter – Allows users to quote a previous comment in their comment.

Whisper – Lets users “whisper” comments that are only visible to one person.

Moderate comments effectively

Comment Twitter SMS Notification – Notifies you of new comments through Twitter SMS.

Bannage – Adds the ability to ban users from commenting by name, email, or IP.

CommentCentral – Allows batch opening and closing of comments on multiple posts. (via)