You want to know about collecting games and building your collection? Here are some sites I use every day to help with the Metal Jesus Game Room!

Great website for all generation of games, but especially old computers!

Specializes in Atari consoles & computers, as well as home-brews but the forum discussion is great for everything else too!

A good starting place for the pricing trends of games.

The most popular Nintendo fan site on the internet, including a very active forum