Microsoft is fine-tuning further its Office businesses and is moving Yammer under Office 365.

Ever since Microsoft bought enterprise social-networking vendor Yammer two years ago for $1.2 billion, the Redmondians have allowed Yammer to continue to operate fairly independently.

But Microsoft management may be tightening its grasp a bit on the San Francisco-based Yammer business.

On July 24, Yammer Co-founder David Sacks announced on Twitter that he was leaving Microsoft and Yammer.
Read more at: Microsoft moves Yammer under Office 365; Co-founder David Sacks is out | ZDNet