Below are some of the sites that I use a lot; you may well know most of them, but they are all well worth a look.
Winamp - One of the best mp3 players available for download
Alladvantage - Get paid for surfing
Cashsurfers - Get paid more for surfing
Virtual Dr - A very good technical PC forum
Topfiles - Good site to find drivers
Anyskins - Customise how your PC looks
The Big Hub - A really good search engine
Astalavista - Search engine for cracks
Imaginers - Not a bad warez site
Keygen Studio - Key Generator archive
Mp3MediaWorld - Loads of full albums to be downloaded
CD-Wow - Current CD's for good prices