WordPress Antivirus and Hack protection.
Stops trackbacks and pingbacks from showing up as comments on posts.
Adds a list of Posts with Pingbacks and Trackbacks to WordPress with a widget, shortcode, or theme functions.
The Popularity Stats plugin is a handy plugin for WordPress which quickly reports the popularity of a website.
Disable comments by default on new pages and custom post types, while still giving you the ability to individually set them on a page or post basis.
Hides metabox controls on the write/edit post & page admin screens for each user role. Also controls autosave, trash time and saved revisions.
Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.
A utility plugin that runs database operations on your WP database to change settings and clean up unwanted trackbacks, pingbacks, and comments.
Displays trackbacks and pingbacks which belong to the currently displayed page in a widget.
QPM adds page/post management links for one-click actions as drafting, private/public, opening/closing comments/trackbacks, trashing/deleting, etc
MP Spam Be Gone is the simplest, most effective Spam blocker.
Pingback Killer disables all of WordPress' pingback functionality.
Prepares bloggable news content ( based on specific search terms that you supply ) from other WordPress® powered sites. Great for pinging related new
Provides dashboard elements and themes widgets to display SEO related info, like inbound links, retrieved using the SEOmoz Linkscape API.
Adds Whitelist and Blacklist options for Trackbacks and Pingbacks
Twitter Trackbacks Bar is plugin to integrate tweets that mention your post into your blog. It separates the trackbacks and the pings of comments.
Display your recent comments the way YOU like and use fantastic looking comments by default!
Displays Google Buzz button and Google Buzz Comments
Displays Twitter users that recently Retweeted your articles
A WordPress widget that gives you unprecendeted control over displaying your comments loop and comment form.
Pingcrawl adds a "Possibly related posts" capability by querying Google Blog Search for post tags and pinging the results. Limits are configurable.
Remove trackbacks from your sitewide and individual post comment feeds, and/or have alternate feeds for comments or trackbacks only.
Version: 1.1 Like trackbacks, but not -- this plugin searches and displays content related to your CONTENT, not just posts that link to yours.
Adds a template tag to allow you to display only the trackbacks for your posts/pages.
Replaces the "[...]" for just "...". Feel free to customize it by editing the plugin in the plugin editor
Automatically puts all trackbacks into the comment moderation queue.