Rather than provide a links page, check out my bookmarks at del.icio.us.
Here is the hard-to-find instruction manual for the fantastic Beaulieu R16 "Automatic" 16mm camera.
All of the scans I found on the web looked really bad, so here are 35 pages of handsome typography and clear photos, scanned with loving care.
Beaulieu R16 "Automatic" Instruction Manual
(6.6MB PDF)
And here's my contribution to the long list of resistor color code charts on the web. This one is very printable, unlike the lo-res versions I used to compile it. (It has info on SMD components too.)
low-res JPG version
PDF version
OpenDocument version
(for OpenOffice and compatible apps)
Here are instructions for creating a simple "break-beam" light detector circuit that virtually taps a button on the hacked device of your choice (music player, DVD) whenever an object interrupts a light beam (laser, flashlight). With slight modifications you can make it sound-sensitive via a line-level audio input. Schematic, parts list, and PCB layout are included with Radio Shack part numbers.
PDF version.
OpenDocument version
(for OpenOffice and compatible apps)