Have a look at the Classic Camera Repair Forum
http://www.kyphoto.com/cgi-bin/forum/discus.cgi
A trawl of the archives will reveal all kinds of useful information. For printed matter, try to get hold of a copy of Thomas Tomosy's basic repair books. Get Vol 1 first and that will send you off in the right direction. Volume 2 is a little more advanced.

Steve