Asploder.com - Various gadget and hardware hacks with a focus on electronics and DIY.
cre.ations.net - User based creations website with a focus on electronic hardware.
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.
Freedom to Tinker - Discussions on the freedom to understand, discuss, repair, and modify the technological devices you own.
Hack A Day - A hardware hack every day.
Hacked Gadgets - A resource for DIY project documentation as well as general gadget and technology news.
I-Hacked - Information about hacking internet appliances, game consoles, and palm pilots.
Winston's Lego Computer - Estimate is that the components for this lego PC (including the adapters needed for the notebook hard-drive and CD-ROM) come out to $330-$380 not including Lego pieces.
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