Twitter Bookmarks - Create shortcuts to your favorite users/tweets on Twitter
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
MyTweetAlerts.com - Like Google Alerts for Twitter
Clever - syncing between education applications for K-12 schools
Quuu - Quuu is a curated content suggestion platform that connects to your Buffer queue, allowing you to grow a relevant social media following across your entire social landscape.
Claroline - Claroline is a collaborative eLearning and eWorking platform.