Facebook is taking the weight-of-the-world off Microsoft's shoulders. Today, news came out that the Facebook officially bought Microsoft's Atlas Solutions.
Back in December, rumors circulated that Facebook planned to acquire Atlas in an effort to build its own external advertising network. Microsoft acquired Atlas Solutions back in 2007 as part of its purchase of aQuantive for $6 billion. Microsoft was apparently interested in offloading the property, and Facebook was interested in buying it.