PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Privatter - Privatter is the easy way to share long texts and pictures set limit on your followers. You can post them by Sign in with Twitter account to this site.
Clever - syncing between education applications for K-12 schools
Twishort - Twishort is a best Twitter app for writing longer tweets. Tweet more than 140 characters
Claroline - Claroline is a collaborative eLearning and eWorking platform.
Twitter text Splitter - Twitter text Splitter is a chrome extension that helps you to publish multiple tweets of your writing or a paragraph on your newsfeed.