rsscache allows you to aggregate and cache feeds (including RSS) into an SQL database and generate new feeds from them using search queries, categories, etc. A simple XSL example to turn the cache output into a new Web site is included.
JSCache allows you to cache objects (such as AJAX responses) using a memcache-like key/value style with tagging added.
A tool to conduct TCP performance analysis.
Software to build and execute shell command lines from standard input in parallel.