YouTube has just posted their 2010 recap on their official blog. Here is a link to the post from the YouTube blog.
A few key stats:
700 billion videos were watched on YouTube in 2010. 700 Billion!
13 million hours of video were uploaded in 2010.
The Most popular video of 2010 was the Bed Intruder Song – they’ve since added the words “Now on iTunes” to the title! Here is a link to it. It’s great, and yes, you should watch it.