StumbleUpon Something Worth Doing

If you haven't heard of or tried StumbleUpon then you're missing out on something great to occupy your boredom. The way it works is that other users share their "stumbles" with the friends and the StumbleUpon community. Others can then find their stumbles and like them to increase their popularity or keep it moving to the next stumble. These can also be sorted into categories so that you aren't stumbling upon things that you really aren't interested in.

Link

http://www.stumbleupon.com/