On my Android phone I use Places, Maps and Navigation, YouTube, Voice, Talk, Calendar, Drive, Goggles, and Play Music, and many of these apps sync to the cloud for integration to the desktop.

In essence, Google has a very large window into what I'm doing, where I'm going, what I'm watching, and who I'm talking to. And this window stays open for much of every day I'm online or using my phone.

While Facebook also garners data from me when I'm on its network, I'm not there very often, relatively speaking.

Facebook has many fans, is growing on a billion users, and now has a big pile of money with which to continue to innovate. For instance, the company recently said that at some point it could to display ads outside of its platform. That would be huge and put the company in a much better place to compete with Google.