Microsoft probably ran out of successful Windows proprietary based companies to buy. Skype, Visio, Yammer, Great Plains Software, ... http://en.wikipedia.org/w

Microsoft probably ran out of successful Windows proprietary based companies to buy. Skype, Visio, Yammer, Great Plains Software, ... http://en.wikipedia.org/wiki/List_of_mergers_and_acquisitions_by_Microsoft#Acquisitions http://en.wikipedia.org/wiki/List_of_mergers_and_acquisition...