As Facebook at Work prepares for launch, Microsoft pushes Yammer and Office closer together

Microsoft-owned enterprise social network Yammer is introducing a handful of updates today, as rival Facebook prepares to launch its very own Facebook at Work service on Monday.
Among the new Yammer updates is the ability to create and co-author Microsoft Office documents — including Excel, Office, and PowerPoint — and share them with specific teams within Yammer.
It’s worth noting here that Yammer already offered Office editing functions, with users able to upload files into Y