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[BigRedDog]

I'd heard some of these numbers recently although they were much lower...   apparently my source hasn't kept up to date real well

Traffic

    60 hours of video are uploaded every minute, or one hour of video is uploaded to YouTube every second.
    Over 4 billion videos are viewed a day
    Over 800 million unique users visit YouTube each month
    Over 3 billion hours of video are watched each month on YouTube
    More video is uploaded to YouTube in one month than the 3 major US networks created in 60 years
    70% of YouTube traffic comes from outside the US
    YouTube is localized in 39 countries and across 54 languages
    In 2011, YouTube had more than 1 trillion views or almost 140 views for every person on Earth

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
    An auto-shared tweet results in 6 new youtube.com sessions on average, and we see more than 500 tweets per minute containing a YouTube link
    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
    More than 50% of videos on YouTube have been rated or include comments from the community
    Millions of videos are favorited every day

More at:  http://www.youtube.com/t/press_statistics