Starters - Hacker news for sports tech
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Swish - Insanely great window management
Clever - syncing between education applications for K-12 schools
Scorum.com - Become a paid sports blogger
Claroline - Claroline is a collaborative eLearning and eWorking platform.