Since the MacHTTP project got restarted a lot of people are getting their old Macs back on the web.

http://sourceforge.net/projects/machttp

It was the inavailability(?) of the software and lack of support that kept a lot more people from getting their old Macs set up as servers. I couldn't find the old software anywhere for a while. The nearest I could get was Webstar and the current version is being sold as a commercial product and the old 68k machines haven't been supported for a long, long, time.