StumbleUpon.com: Discover the Best of the Web
I know alot of people who don't know about this.
No flaming comment pls.
StumbleOpon is like a sharing site, with categories and you get to choose what shows up for you, I love it. I look around it when I'm bored, and I really get into it sometimes.
Again, no flaming/troll comments, I know a lot of people who don't know about it.