http://commodoreserver.com (check the blogs and photo galleries - these guys make a lot of Commodore Shows) https://groups.google.com/forum/#!forum/comp.sys.cbm http://www.commodore.ca/forum/index.php http://www.lemon64.com/forum/
Just about ANY commodore 8-bit book or magazine you want to look at: http://www.bombjack.org/commodore/