Dan Stahlke's web page
Software:
SwathViewer
GDAL scripts
lxt - an Xtree clone for linux
Java fractal generator
Electronics:
22-bit voltmeter using AD7714
Power usage logger
AVR-USB temperature probe
AVR digital comb filter (humnuller)
Driver for Nokia 6100 LCD
Cell phone privacy modification
Inside the PayPal security card
Misc:
Papers for physics classes
Links:
Bill Beaty's Science Hobbyist
Lots of amateur science stuff
AVR Freaks
The availability of this resource was the reason I got back into microcontrollers
Techlib
Information on home-made VLF/ELF receivers
Electric Field Disturbance Monitor
This circuit can detect movement from across the room by monitoring changes in the ambient electric field
I want sparks & I want them NOW!
Simple high-voltage Marx generators
perl -e 'print "P1\n256 256\n", map {$_&($_>>8)?1:0} (0..0xffff)' | display