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This plugin generates a XML-Sitemap compliant sitemap of your WordPress blog. This format is supported by Ask.com, Google, YAHOO and MSN Search.
More information what XML-Sitemaps are and how they can help you to get indexed by the major search engines can be found at Sitemaps.org and the searchenginewatch blog.
If you have questions about XML-Sitemaps or [...]

WP-o-Matic makes autoblogging a snap by automatically creating posts from the RSS/Atom feeds you choose, which are organized into campaigns.
Features:

Campaigs Feeds and all settings and options are now organized into campaigns for the perfect organization and comfort.
Multiple feeds / categories: it’s possible to add as many feeds as you want, and add them to as [...]

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

WP-Cache is an extremely efficient WordPress page caching system to make your site much faster and responsive. It works by caching Worpress pages and storing them in a static file for serving future requests directly from the file rather than loading and compiling the whole PHP code and then building the page from the database. [...]