Microsoft has acquired Yammer for $1.2 billion, the companies announced Monday, June. 25. The deal had been an open secret for more than a week. Yammer is a product that allows companies and ...

Microsoft says Yammer users have jumped 55 percent to about 8 million in the year since it bought the corporate social-networking company. Shara Tibken was a managing editor at CNET News, overseeing a ...

The rumors were true: Microsoft is indeed buying business-centric social networking site Yammer for $1.2 billion, or $200 million more than early rumors indicated. A presumably pleased Microsoft CEO ...

Microsoft (NAS: MSFT) is opening its pocketbook once again, this time to acquire enterprise social-networking company Yammer for about $1.2 billion. This follows Microsoft's biggest ever acquisition ...

So the coffee shop rumours were true. This week Microsoft confirmed that it has acquired Yammer for $1.2 billion in cash. It certainly is impressive that Yammer, which started in September 2008 has ...