Approved links:

High Voltage Sid Collection
Visit the HVSC and get the best SID collection available on the net!
The Open Commodore Portal
The best site for Commodore-scene related news!
[] - Probably the best C64 demosite on the web!
Another website dedicated to the C64 demoscene.
The C64 scene database!
THE C-64 scene database! Looking for something? You'll find it here!
THE C64 website! Games, demos, interviews, pictures, you'll find it all on this full-featured C64 site. Very detailed information with cute webdesign on top.