Mass Page Remover makes it easy to remove multiple pages at once.
Delete posts on your WordPress blog by keyword searching
Automatically deletes older articles that have not been read, based on WordPress.com stats.
Deletes all tags, handy tool if you want to start over with a quick clean blog.
This plugin will allow your users to delete their own account without any need for interaction on the administrator's behalf.
This plugin allows you to delete Posts, Pages and Comments without moving them to Trash first. Additionally it restores all Are you sure? questions.
Clean up unused images and other files from your uploads folder.
"Delete Del" removes del elements from RSS 1.0 feeds, and removes HTML comments from feeds and post/page content.
Clean your wordpresss blog database from unused data like spam comments, revisions for post and pages
An Ajax Plugin Helper for the WordPress admin plugin page. Adds Ajax activate, deactivate, delete and upgrade functionality.
Uses wp_cron to delete comments each day that are marked "spam" in the database.
Easily remove any/all of the default WordPress dashboard widgets
AJAX-based table manager for WordPress. It is built using the excellent data grid
Update (17. November 2008): I keep this plugin here for reference but since WordPress 2.7 there's a [Plugin Installer](http://codex.wordpress.org/Vers
RSS link for this tag.