reddit.com

Never reddit before? Here's how:

reddit is a source for what's new and popular on the web -- personalized for you. Your votes train a filter, so let reddit know what you liked and disliked, because you'll begin to be recommended links filtered to your tastes. All of the content on reddit is submitted and voted on by users like you.

read
user-submitted links, it's more fun than being productive.

vote
for what you liked/disliked, democracy in action.

explore
what reddit recommends, it's filtering for your tastes.

submit
interesting links, gain karma, impress friends.

Visit: reddit.com