A rather useful little search engine for the searching the web thingy. This is the UK one.
A stunningly good website dedicated to AVR microcontrollers designed by Atmel. I can't rate this site highly enough.
Covers every detail of every analogue TV signal you'll ever want to know about.
Everything you ever wanted to know about terminals, but never knew you wanted to. It's a great site for obscure user manuals and it's got a frightening
state diagram for VT100 control sequence decoding.
The Arduino is an open-source electronics prototyping platform specifically aimed at artists, designers and hobbyists.