All-in-one WordPress spam protection, with NO CAPTCHAs, challenge questions or other inconvenience to site visitors.
Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.
An admin interface to control the default comment and trackback settings on new posts, pages and custom post types.
Aggressive anti-spam plugin that eliminates comment spam, trackback spam, contact form spam and registration spam. Protects against malicious attacks.
Hides metabox controls on the write/edit post & page admin screens for each user role. Also controls autosave, trash time and saved revisions.
A utility plugin that runs database operations on your WP database to change settings and clean up unwanted trackbacks, pingbacks, and comments.
MP Spam Be Gone is the simplest, most effective Spam blocker.
Stops trackbacks and pingbacks from showing up as comments on posts.
Pingback Killer disables all of WordPress' pingback functionality.
One step process to remove pingbacks and trackbacks and leave only real user opinions in your posts comments.
Display your recent comments the way YOU like and use fantastic looking comments by default!
Adds a list of Posts with Pingbacks and Trackbacks to WordPress with a widget, shortcode, or theme functions.
QPM adds page/post management links for one-click actions as drafting, private/public, opening/closing comments/trackbacks, trashing/deleting, etc
The Popularity Stats plugin is a handy plugin for WordPress which quickly reports the popularity of a website.
Pingcrawl adds a "Possibly related posts" capability by querying Google Blog Search for post tags and pinging the results. Limits are configurable.
Automatically puts all trackbacks into the comment moderation queue.
Prepares bloggable news content ( based on specific search terms that you supply ) from other WordPress® powered sites. Great for pinging related new
Displays trackbacks and pingbacks which belong to the currently displayed page in a widget.
Provides dashboard elements and themes widgets to display SEO related info, like inbound links, retrieved using the SEOmoz Linkscape API.
Easily control who can comment and when they can comment on any post type.
Remove trackbacks from your sitewide and individual post comment feeds, and/or have alternate feeds for comments or trackbacks only.
Adds a template tag to allow you to display only the trackbacks for your posts/pages.
Adds Whitelist and Blacklist options for Trackbacks and Pingbacks
Version: 1.1 Like trackbacks, but not -- this plugin searches and displays content related to your CONTENT, not just posts that link to yours.
Bulk Trackback & Comments On/Off for your posts or pages in a super easy way.
Replaces the "[...]" for just "...". Feel free to customize it by editing the plugin in the plugin editor
Displays Twitter users that recently Retweeted your articles
A WordPress widget that gives you unprecendeted control over displaying your comments loop and comment form.
Displays Google Buzz button and Google Buzz Comments
Twitter Trackbacks Bar is plugin to integrate tweets that mention your post into your blog. It separates the trackbacks and the pings of comments.