Microcontroller and Computer Website List 2013

http://www.adafruit.com/
http://www.anycpu.org/
http://www.atmel.com/
http://www.arduino.cc/
http://www.basicmicro.com/
http://www.bradsprojects.com/forum/
http://www.brielcomputers.com/
http://dangerousprototypes.com/
http://www.digikey.com/
http://digital-diy.com/
http://www.instructables.com/
http://makezine.com/
http://www.mouser.com/
http://geoffg.net/maximite.html
http://hackaday.com/
http://www.microchip.com/
http://www.nerdkits.com/
http://www.parallax.com/
http://www.propellerpowered.us/
http://www.protostack.com/blog/
http://www.savagecircuits.com/forums/content.php
http://www.societyofrobots.com/
http://www.sparkfun.com/
http://www.ti.com/
http://tronixstuff.wordpress.com/
http://www.xcore.com/forum/
http://www.xgamestation.com/
http://www.xmos.com/
http://www.6502.org/

This will probably get updated at some point as I'm sure I didn't get everybody and I think I overwrote one entry..

Thanks for the list!

Some might find this interesting
http://fpgaarcade.com/dev/drupal/

They will hopefully get out of "beta" soon and be available for general consumption. Source codes are being promised to be released - I am getting one when I see that.