(Inc.) — Many business executives have not found sites such as Facebook, Twitter, YouTube, Myspace, and Linkedinuseful in making money. Building genuine online relationships that are also good for the bottom line is not so easy. There is a lot of trial and error. But while monetizing social media is difficult it is not impossible. There are companies that are getting the word out about their brands using social media and are turning a profit. Take The New York Jets. The NFL team launched their Ultimate Fan social game in September 2010, which was the first revenue generating Facebook app to be backed by a pro sports team. The application lets football fans do online what they would normally do at home and in stadiums—root for their favorite teams and players, predict game scores, and hold a virtual tailgate party with other fans from across the globe.