Flowr is a simple tool for creating open or closed message boards. It's easy to install, fast, and saves your bandwidth. A database is not required.
CurlAxel is a PHP class which uses curl_multithread functions to make simultaneous connections to download one file. The requests are customizable with regard to cookies, http-auth, proxy, proxy-auth, etc.
A Java deduplication / record linkage engine.
Version control information in the shell prompt.