In the first iteration of Facebook, you could only upload one picture. Users kept changing the photo.
Photo-tagging emerged as one of the first most important features — built quickly as part of Facebook's "hacker" spirit.
Facebook's mission is to make the world more connected, Zuckerberg says. Connected to big things and little things
happening around you.
The social graph has always existed, but there was never a map. That was the concept for the Facebook Open Graph,
connecting all Facebo ...