+* [GNU Hurd wiki](http://www.bddebian.com/~wiki/)
+* [Query Object Framework](http://qof.alioth.debian.org/)
+* [Estron - Object Relational Mapping interpreter](http://estron.alioth.debian.org/)
+* [Public Domain collection of Debian related tips & tricks](http://dabase.com/tips/) - please add any tips too