PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
Clever - syncing between education applications for K-12 schools
Wiki.js - An open source, modern and powerful wiki app built on Node.js, Git, and Markdown.
Claroline - Claroline is a collaborative eLearning and eWorking platform.
TiddlyWiki - a non-linear personal web notebook