All my work in Processing: http://Processing.org
_3rdPartyHelp are sketches from somebody else, which I helped to improve (in the forum).
_JBox2D is to play with this library and to make a tutorial on it.
_QuickExperiments is to make... quick experiments, small sketches.
_SmallPrograms is for more ambitious sketches.
Other folders are mostly history, old small programs too.
I recently (Nov 2014) converted the repository from Bazaar to Git, moving it online from Launchpad to GitHub.