openDesktop.org - The website openDesktop.
XtraBuild Designer - XtraBuild offers software development tools for database and reporting applications. No coding!
SourceForge - The Complete Open-Source and Business Software Platform.
Sesame Database Manager - Lantica Software, LLC - Sesame, A Q&A-compatible Database Manager.
Eclipse - Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.
Sheep - Membership and events for SMEs and nonprofits