I was thinking about the old Cromemco, S-100 and CP/M days when I ran across a most interesting web site, www.s100computers.com.
They have a great history and technical section plus active NEW board designs. The author has created his own S-100 bus based system from scratch incorporation modern designs and equipment.
If you have any interest in CP/M or the S-100, this is a must visit site. And if you’re curious about the early days of microcomputing, this site will give you a taste of what it was like in those days.