Google has bought 8 robotics companies in the past 6 months

"Google’s recent acquisition of Boston Dynamics marks its eighth robotics purchase in the past six months, showing Google’s “moonshot” robotics vision is more than just a pet project.
Boston Dynamics is the most high-profile acquisition, however, instantly adding world-leading robotics capability, including robots that can walk all on their own, to Google’s arsenal – as well as significant links to the US military – conjuring images of Skynet and the artificial intelligence-led robot uprising straight out of the 1984 film The Terminator."
Source:  The Guardian, 17th December 2013