When Microsoft invested $240 million to take a small stake in Facebook, the deal almost more about securing an ad deal as it was an equity investment. Now, almost two years later, Microsoft is starting to see some of its advertising pulled as Facebook continues to create its own ad options and revenue models.
According to BusinessWeek, Facebook has dropped Microsoft’s banner advertising in several international markets, and is now considering the same in the U.S. markets. Microsoft serves fairly generic banner advertising on Facebook. As the display advertising market continues to...



