Along the same lines, I just picked up "Computer Notes" Vol. 1 Issue 5, which is an old Altair user group newsletter (kind of a newspaper really). Mostly comments on what's available, etc. but there are some bits of information that some folks might find useful.
There's an article on using serial I/O boards, one on using the stack, and an article on assembly tips for the 8800. Just thought I'd let you folks know.