Youtube Statistics

I came across YouTube's Press Room Statistics, which I thought was quite interesting so here you go:
As of June 2012.

Statistics

Traffic

• Over 800 million unique users visit YouTube each month
• Over 3 billion hours of video are watched each month on YouTube
• 72 hours of video are uploaded to YouTube every minute
• 70% of YouTube traffic comes from outside the US
• YouTube is localized in 43 countries and across 60 languages
• In 2011, YouTube had more than 1 trillion views or around 140 views for every person on Earth
• Millions of subscriptions happen each day. Subscriptions allow you to connect with someone you're interested in — whether it's a friend, or the NBA — and keep up on their activity on the site

YouTube Partner Program

• Created in 2007, we now have 30,000+ partners from 27 countries around the world

Monetization

• Thousands of advertisers are using TrueView in-stream and 60% of our in-stream ads are now skippable
• We have more than a million advertisers using Google ad platforms, the majority of which are small businesses

Mobile and Devices

• Traffic from mobile devices tripled in 2011
• More than 10% of global YouTube views come from mobile devices
• 3 hours of video is uploaded per minute to YouTube from mobile devices
• YouTube is available on 350 million devices

Content ID

• Content ID scans over 100 years of video every day
• More than 3,000 partners use Content ID, including every major US network broadcaster, movie studio and record label
• We have more than eight million reference files (over 500,000 hours of material) in our Content ID database; it's among the most comprehensive in the world. The number has doubled in the last year
• Over a third of YouTube's total monetized views come from Content ID
• More than 120 million videos have been claimed by Content ID

Social

• 500 years of YouTube video are watched every day on Facebook, and over 700 YouTube videos are shared on Twitter each minute
• 100 million people take a social action on YouTube (likes, shares, comments, etc) every week
• More than 50% of videos on YouTube have been rated or include comments from the community
• Millions of videos are favorited every day
• Clicks on the ‘like’ or ‘dislike’ button on YouTube have doubled since the start of 2011. For every ‘dislike,’ we get 10 ‘likes’- people like to tell other people about the stuff they love.