Also, Google+ is on the rise. When MySpace first came out, everyone had one. I never thought that anything could be better than that website. However, when Facebook came out, I did not want to switch.
After I did, I found out how much more I liked it. As time passes on, certain companies fail to innovate and keep current. Here is where I think that Google is a step ahead. As long as they keep their process of innovation and continue to put products through to testing so quickly, they should be able to dominate in those markets in no time.