Social media service StumbleUpon has just crossed the 1-billion stumbles (shares) per month achievement, which “represents explosive growth, especially when you consider that since just a month ago, that number has grown by 200 million.” Continue reading to watch a few videos that have recently gone viral on Stumbleupon.

Why is StumbleUpon growing so fast? In my opinion, because it’s fun. Moments of serendipity run rampant as you click the Stumble button to go to the next selected site, and every site you see is picked because of the detailed preferences you indicate in your profile.

[via Mashable]

Fastest Rapper Ever?

Star Trek – Acid Drive