Plugins can extend WordPress to do almost anything you can imagine. In the directory you can find, download, rate, and comment on all the best plugins the WordPress community has to offer.
A very fast caching engine for WordPress that produces static html files.
Your WordPress, Streamlined.
Social networking in a box. Build a social network for your company, school, sports team, or niche community.
A simple and easy way to test your theme for all the latest WordPress standards and practices. A great theme development tool!
bbPress is forum software, made the WordPress way.