As of writing there are:
· More than 750 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
People on Facebook install 20 million applications every day but only a very small number of those applications were developed with the intent of earning revenue.
I have created a couple of Facebook apps that generate an income. My most recent app is "Daily Inspiration." It is a simple app that gives the user daily motivational and inspirational quotes that shows up as their status each day. I make money when the user installs the app. I've only been running it for about two weeks, and each day I watch as the amount of users increase. I went from 78 users on the first day to 10,996 on this past Thursday. It is slowly gaining popularity as I have only made $6.82 so far. However, this app is going to go far.
This is just one way to monetize Facebook. Do you know any others? Let me know.