Facebook is great for keeping up to date with people you already know, but rarely see, in that it gives you an avenue to contact them regardless of where they are in the world now, or how often they change their phone number or email address.

I untag because you lose control of how it's shared, once it's tagged - photos you're tagged in become part of your profile that you can't limit the audience for.

Yeah the rest is mostly streaming video like Netflix, Youtube and Porn. In fact, Netflix and Youtube are at around 50% by themselves (http://www.theatlanticwire.com/technology/201…). Who knows when porn is involved, probably another 20%. Combine that with torrent traffic of videos (also very large files) and it could…