There's a lot of stuff that you can do with old Macs. I'm using my Quadra 650 (Moto 68040 CPU at 33 MHz) to host my family homepage.  There are some other Macs that are even older than this hosting pages as well. Check the following link for more: http://www.ld8.org/servers/
You'll also find more tips on retro Macs on the following sites: http://www.lowendmac.com http://www.68kmla.com http://www.ppcmla.com/ http://www.applefritter.com/ http://jagshouse.com/ http://www.mac512.com/macwebpages/mac512.html
If I think of any others, I'll post them here.
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• Apple iMac G5 17" (2 GHz G5) - Mac OS X 10.4.11/Ubuntu 9.04
• Asus Eee PC 901 (1.6 GHz Atom N270) - Ubuntu Netbook Remix 9.04
• Apple Macintosh Quadra 650 (33 MHz MC68040) - Mac OS 8.1
• "JHVH-1" (2 GHz AMD Athlon XP 2400+) - Slackware 12.1
• "Kidbuntu" (2.8 GHz Celeron D 335) - Ubuntu 9.04 |