Hide Trackbacks is a WordPress plugin by pacifika that means you can have the benefits of track/ping backs (know when someone writes about posts) whilst keeping the comments clean and uncluttered.
After enabling the plugin, trackbacks and pingbacks are no longer shown on your posts and the comment count is updated correctly to reflect this. You can still access them via the admin panel.
Requires WordPress Version: 3.1.2 or higher.
Download and info: http://wordpress.org/extend/plugins/hide-trackbacks/