Description: Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people they meet.
Information for 2009. Data for 2010 is available here
Approx. monthly SE traffic: 19.33M
Approx. monthly SE traffic cost equivalent: $13.06M
Approximate Summary Search Engine Traffic
* — "Est. Cost" for organic traffic means amount of money the site owner would pay for such traffic if he bought it in PPC systems.