http://www.floodgap.com/retrobits/ckb/secret/

You can delete this if it has been posted before.

As Cameron Kaiser's "Secret Weapons of Commodore" site seems to be offline, here's a link to the wayback machine's archive from 2008

(As far as I can tell, it's a collection of stories and informal histories with technical resources. A lot of the pictures are not present on the archive.org version.)

There's also an archived version of the Commodore Knowlege Base from 2003 - Cameron seems to have blocked his site from the archiver.