Teachable - Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.

Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.

Clever - syncing between education applications for K-12 schools

JabRef - Graphical Java application for managing bibtex (. bib) databases.‎JabRef · ‎JabRef Help · ‎JabRef | Blog · ‎OpenOffice/LibreOffice .

Claroline - Claroline is a collaborative eLearning and eWorking platform.

Citavi - Citavi is a program for Microsoft Windows that manages literary references and organizes organizational knowledge.