Right, being "on" Facebook isn't a prereq for being under their umbrella. Snapchat, Vine, and other networks are not under that umbrella, meaning it's still a

Right, being "on" Facebook isn't a prereq for being under their umbrella. Snapchat, Vine, and other networks are not under that umbrella, meaning it's still a zero sum game. These companies are competing for your attention, for which there is limited supply.