Facebook's, Google's futures are embedded in these two images
 

"So the titanic showdown between Facebook and Google might not be the News Feed vs. Google+ after all. It might be Facebook Camera vs. Project Glass. It might, in fact, be pictures vs. vision." Sounds esoteric, but bear with author Robin Sloan, because I think he's clearly on to something. By extension, this.

http://osnews.com/story/26020/Facebo...e_ two_images