Sonar : Sonar is an open platform to manage code quality.
Semantic Versioning : I call this system "Semantic Versioning." Under this scheme, version numbers and the way they change convey meaning about the underlying code and what...
VSTPLANET : VST Plugins Free - Virtual instruments and effects
Dada Mail : Dada Mail is a Contemporary Mailing List Manager, enabling you to easily run a verified mailing list that your subscribers can trust, right on your ow...
Cachet : Beautiful & simple service statuses. The open source status page system, for everyone.
I've come up with my own, highly irresponsible, sloppy test to rate the quality of a software team : 12 Steps to Better Code.