Facebook, to the surprise of many, is still the place to be.  Customers spend more time on the social networking site than anywhere else on the web, so businesses have to be there to talk to them. While some try to grow an organic following by getting people to “like” their page, many small businesses now bank on paid Facebook advertising.

According to an article in the Wall Street Journal, “Facebook is expected to earn $2.01 billion in U.S. display ad revenue this year, a 67% increase from 2010,” which would elevate the site to become the leading seller of U.S. display advertising revenue.

Why are small…