Facebook is an online social utility that helps people communicate more efficiently with their friends, family and businesses. Facebook started originally for college students, so natural progression for professional in the business world.
On Facebook : People Have Profiles, Businesses have Pages.
800+ million active users
50%+ active users log on to Facebook daily
130 average friends per user
80 pages, groups and events per user
250+ million photos are uploaded per day
7 million+ apps and websites are integrated with Facebook