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This plugin displays excerpts of the most recent comments and/or trackbacks that have been posted to the articles in your blog.
Features

Highly configurable via WordPress admin interface.
Support for WordPress 1.5.x, 2.0, 2.1, 2.2 and 2.3
Doesn’t show pingbacks originating from own blog
Adjustable layout by macros.
Handles trackbacks and comments in separate lists, in one combined list.
Widget support (but [...]

WordPress Paged Comments is a plugin for WordPress 1.5 and 2.x to allow comment paging. Useful for those popular blog entries receiving many comments, or a simple guestbook page within WordPress.
This plugin is downloadable from: www.keyvan.net

Subscribe to Comments 2.1 is a plugin that allows commenters on your blog to check a box before commenting and get e-mail notification of further comments. It is one of the most popular WordPress plugins out there for the simple reason that it helps foster a community around your blog by encouraging commenters to come [...]