Gaming:
Gaming World: Home to many great games and game makers.
Gamefaqs: Cheats for almost every game on almost every format.

Internet \ Web design
Teencoderz: Jag's site that has tutorials on stuff like PHP and other Internet coding.
Soljah: This will make your eyes bleed.
Freewebs: Good host but has some tight restrictions.
Chami: Chami is the creator of the exelent HTML-Kit which was used to build this site.
WDVL: This site has some useful tutorials.
Spoono: Has a silly name but some good tutorials can be found here.
Evolt: Has some tutorials and other stuff relating to web design.
Devshed: Has useful info on PHP, Java etc.