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.
Stops self pingbacks and trackbacks on own posts and pages.
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.
Stops trackbacks and pingbacks from showing up as comments on posts.
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
This function is designed to allow you to add a list of popular posts to your website theme based on which posts have pingback and trackbacks.
The Popularity Stats plugin is a handy plugin for WordPress which quickly reports the popularity of a website.
Stop trackbacks after linking a blog post with some other internal blog post.
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
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