Currently clazzes.org maintains about 32 projects.
Unfortunately only very few are documented with a separate page, as you can see in the Projects part of the sidebar.
There is however a way to browse all proejcts online: The auto-maintained list of Subversion Repositories at svn.clazzes.org provides public access to all projects hosted at Clazzes.org. But be warned, there are some things we are almost too ashamed to admit participation 