Google is also investing heavily into stuff thats far from their core competency, like robots and self driving cars. I just hope FB don't mess with it too much in the next few years.
Maybe this is my personal bias showing, but surely Google is more of a general technology company than Facebook could hope to be.
Google has a long-term, sustainable business that continually makes huge strides in new markets - from revolutionising search, to speeding up the evolution of the internet through projects like Chrome, smashing up the smartphone market with Android, and so on. Facebook on the other hand is a pretty good social network that seems to have hit its peak and is difficult to monetise, where the only strides that are taken appear to be buying companies with overlapping userbases in order to cling on to relevance.
