NationBuilder - The world's first platform for leaders, handcrafted from scratch to help you grow your community and lead them to action.
Slack - A messaging app for teams who see through the Earth!
Crowded Communities - The all-in-one community platform.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
Ning - Ning is the social platform for the worlds interests and passions online.
Jostle - A new kind of employee intranet that drives engagement & workplace culture. Achieves social participation in work relevant way. Participation rates are over 85%.