ENDALGO - Team and league management for the social athlete
LTSP - The Linux Terminal Server Project adds thin-client support to Linux servers.
Sports Bridge - Find a sports team for your child
Thinstation - Thinstation is a basic and small, yet very powerful, open source thin client operating system...
Athlete Builder - Get better at your sport (mostly football right now)
Nakama - Nakama is an open-source distributed social and realtime server for games and apps.