The JiniWiki discusses Jini technology and the community. You can find it on http://www.cdegroot.com/cgi-bin/jini.
(well, that is - after I have done restoring it. JiniWiki got spammed to death, so I had to take it offline. Now I need to get it running, clean up all the trash, and put it live again. I hate breaking links, but I couldn't do much about it in this case -- CeesDeGroot)