Good_Resources

http://www.instructables.com/

if you can think of it... somebody has probably already built at least part of it and posted it there.

http://www.dspguide.com/

Free online Digital Signal Processing(DSP) Book

http://www.play-hookey.com/

A great resource full of lots of basics

http://www.circuit-projects.com/

A phenominal list of sweet projects

http://www.pdamusician.com/dpscope/index.html

Where to get a $80 oscilloscope... 2 channels, 1MHz Analog Bandwidth, great for audio and breadboard circuits.

http://www.sengpielaudio.com/Calculations03.htm

All things Audio calculations

http://www.picaxe.com - those microcontrollers are super-easy to use for a beginner, yet very inexpensive. They have a very beginner-friendly web forum (www.picaxeforum.com).

http://www.robotroom.com - that guy also has two very readable introductory books about robot building, and he also covers a lot of practical electronics along the way.

http://www.opamp-electronics.com

http://www.discovercircuits.com/

 http://www.awce.com/

http://chemelec.com/Projects/Projects.htm

more hobby circuit projects

Parts and Kits (this website is not sponsored and these links are where I find useful parts...)

http://www.sparkfun.com/

Hobbyist source for beginner and advanced components

taydaelectronics.com

Hobbyist electronics source

http://www.nerdkits.com/

Kits designed for education

http://www.seeedstudio.com/depot/

Source for affordable electronics

http://www.vakits.com/index.php?cPath=47

Source for affordable and interesting electronics projects

Also see: 

Where to find Robot parts