Cress is a comprehensive toolset for graphical service/workflow design
.NET, PowerShell, SQL, Java, Perl, and Javascript developer libraries
AMPPS is a LAMP/MAMP/WAMP stack
ss7mon an SS7/SIGTRAN signalling monitor
C-Lesh is a game programming language for 2D games.
Apache Cayenne, Wicket, CXF, GWT, EJB examples as a framework
keyword search engine for semi-structured data (Tables, lists,...)