Protopage - The best iGoogle alternative. Chris Pirillo calls Protopage "The best designed".
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.
Symbaloo - Symbaloo is a personal start page, your personal desktop for the Internet.
Clever - syncing between education applications for K-12 schools
start.me - A Modern-day bookmark manager. A place for your favorites. A news feed (RSS) reader. A browser startpage. A portal for your team.
Claroline - Claroline is a collaborative eLearning and eWorking platform.