Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.
XtraBuild Designer - XtraBuild offers software development tools for database and reporting applications. No coding!
TidyHQ - Organization management tool to support membership, subscriptions, event planning, and outreach.
Sheep - Membership and events for SMEs and nonprofits
Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
DbFace - DbFace is an online database application & report building tool.