WordPress.org

Author: Jeff Minard

Favatars is a plugin that enables each comment/pingback/trackback to be accompanied by the website favicon (if available).

A little less cryptically, this means that when a user on your blog leaves a comment/pingback/trackback, if they supply a URL, the plugin will see if their website has a favicon - if they do have a favicon, then you will have the option of making it show up on your blog right next to their name.