Livejournal- Hands down, the best place to get an online journal. And since they got rid of the invite codes, I suggest everyone go get one now!
Newgrounds- An old favorite. It's just a bunch of flash cartoons and games that are hilarious. I love them all. Really, you should visit this place one day.
FTJ- Argh, a rating thingie. I'm actually on here, and there's a LOT of really dead sekshi people here. Username: fataltrip
MOC- A nice little website where indie and hardcore kids unite!
Homestar Runner- THE GREATEST WEB COMIC EVER.
Quizilla!- A site where you can make and take quizzes. What else can I say?
AFI- Agh, fun.
YouThink- Oh, my god, I used to be addicted to this stupid thing. But whatever, it's all still good. Fun.
My Xanga- It's my Xanga, what else is there to say?