This document summarizes key demographics of Facebook users and how businesses can benefit from using Facebook. It notes that over 103 million people in the US use Facebook, with the largest increases in users aged 55+ and 35-54. It also discusses the differences between personal profiles, Facebook pages for businesses/organizations, and groups. The benefits of a business Facebook page include that it's free, allows tracking of metrics like new fans and views, and enables reaching existing customers already using Facebook.