Things I have written on this wiki:
Some other Cocoon-related things I have done:
Cocoon captor, now integrated into the head branch of Cocoon
Pollo, XML editor supporting the editing of sitemap files.
I work for a nice company called Outerthought (located in Belgium), which focusses on Open Source XML and Java.
If you'd like to contact me about any of the above, you can write me at bruno at outerthought.org