[txt]

    *  More than 500 million active users
    * 50% of our active users log on to Facebook in any given day
    * Average user has 130 friends
    * People spend over 700 billion minutes per month on Facebook

# More than one million developers and entrepreneurs from more than 180 countries # Every month, more than 70% of Facebook users engage with Platform applications # More than 550,000 active applications currently on Facebook Platform # More than one million websites have integrated with Facebook Platform # More than 150 million people engage with Facebook on external websites every month # Two-thirds of comScore’s U.S. Top 100 websites and half of comScore’s Global Top 100 websites have integrated with Facebook

http://www.facebook.com/press/info.php?statistics

They aren't going anywhere for awhile, this is exactly why I've spent so much time developing apps JUST for FB.

[chrisb]

And are they successful? Do you make money from them (if that's your aim)?

[sorbus]

So the average user spends 1,400 minutes on facebook each month - about 23 hours and 20 minutes, or about 45 minutes a day. This figure could be really skewed if it tracks log-in time, not actual eyeball time (although that seems unlikely to me, looking at the daily number), and a lot of usage is probably games, but it's still massive, and, to me, somewhat disturbing.

Still less time than TV (2.8 hours/day[1]), though.

[1] http://www.bls.gov/news.release/atus.nr0.htm