HoldingNuts is a multi-platform poker client and server. You can play the popular Texas Hold'em variant with people all over the world, meet your friends, run your own games, and even set up your own poker network.
httppp is a network passive probe to monitor HTTP response times in a non-intrusive way. It uses libpcap and libqpcap.
PHP class to verify if a e-mail address is valid.
A compression library for lzip files