What's the Best Way to Recycle Old Tech in the US?

Tim Danhamn writes "SmartPlanet.com, a green-focused Web site, has put up an article about the best way to recycle your old tech, including local recycling centers and reusing old technology in other ways. I'm about to upgrade to a new PC and I have a lot of old radios, MP3 players and other electronic goods lying around the house. The article though is mostly about solutions in the UK, so I want to know - what is the best way to recycle old tech in the US?"