Beamer Games Online - Site of Smiley Town Arcade's staff member Beamer. Featuring most of his games, midi's and a few other things.
Chaos Lair - A fairly new South Park site, but worth checking out.
Cyberryan's South Park Sounds Haven - One of the best sites to visit if you want SP sounds.
Farty Pants - Newly-opened SPG site by Lil Filmore. Features a ever-growing collection of South Park Games made with Flash.
Finger Bang - A popular South Park messageboard with lots of members.
Junkman Games - Site of Smiley Town Arcade's staff member Junkman. Contains every game he ever made, as well as some of his midi's and some other neat stuff, as well as a selection of great games by other people.
Smiley Town - A great South Park site that gave us hosting. Really good for things like grabpics, etc.
South Park 24/7 - A pretty cool SP site, also hosted by Smiley Town. This one's useful for looking up things like South Park album lyrics and episode secrets.
South Park Complete - A popular South Park site with lots of downloads, and a few other cool things too.
South Park Gaming Archives - An excellent South Park Gaming website that hosts tons of games made by various SPGamers.
South Park HTML - A nice South Park site where you can download every episode from. Also contains some useful SP info.
South Park Reanimated - A SP site made entirely in flash with lots of cool pictures and other great stuff. A really unique site.
South Park Scriptorium - Although it might not have tons of fancy downloads and the things most SP sites have, this is the best site to go to get South Park info from, including some rare and interesting things that even the biggest SP fan may not have known!
South Park Studios - The official SP site. Need I say more?
South Park X - An incredibly popular South Park site that's great for episode downloads. Also has some neat pictures too, some of them are 3-D!
Summer Sucks - A new South Park messageboard. Not as popular as Finger Bang, but it's a great place to go for interesting SP discussion.