PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Drawasaurus - Drawasaurus is an online drawing & guessing game you can play with friends or strangers.
Clever - syncing between education applications for K-12 schools
skribbl - Word guessing based on drawing.
Claroline - Claroline is a collaborative eLearning and eWorking platform.
gartic.io - Draw, guess, and win!