I-Opener
Adam's Guide to the I-Opener, Badflash.com, Expanding the Netpliance I-opener, I-Opener FAQ, I-Opener Info, i-Opener Info Index, I-Opener Info Page, I-Opener Information and Hacking, I-Opener Link Collection, Linux-Hacker.net
Cryochem9's Grid
Mostly links to interesting hardware sources, but includes a message board and the like.
Dis.org Projects
List of current research from San Francisco and the Berkeley Bay Area.
I-Hacked
Information about hacking internet appliances, game consoles, and palm pilots.