http://www.resexcellence.com/ The long-defunct Mac website ResExcellence has returned with its old content. Back in the day this site had all kinds of information about the workings of Macintosh systems and I personally learned quite a bit from it in grade school and junior high. It certainly set me on the path that led me to learning everything I know about software.
http://home.comcast.net/~mjmahon/AppleCrateII.html Someone's wired a bunch of Apple IIs together to get them to work together in parallel.
http://www.kreativekorp.com/software/fonts/urbanrenewal.shtml A free reproduction of the really old Mac bitmap fonts.