The CyberSyn plugin is powerful, lightweight and easy to use Atom/RSS aggregation and content curation plugin for WordPress. The CyberSyn plugin has one very unique feature which allows you to import full text articles.
The KVS Player plugin allows one to easily embed videos (supported formats: FLV, F4V and MP4) into WordPress posts and pages using the following shortcode:
[flv:url image width height link player]
The WP Quote plugin adds random quotes from famous people or whatever text you want to every post and page of your blog. With WP Quote you can add to your posts not just random text messages but any HTML code including banners, flash animation, embedded videos, iframes etc.
This plugin displays a list of tags (tag cloud) on the specified page.
This plugin allows one to mass delete WordPress posts and pages according to the specified rules such as date range, post status and content.
The WP-Flash plugin allows one to easily insert flash animation into WordPress blogs, using the following shortcode:
[swf:url width height]