Start-Ups

Tech history in photos: Social media founders

Mark Zuckerberg, Facebook

Social media is a relatively new phenomenon, but it shapes the daily lives of many internet users. Here are the people behind some of the most important social media sites.

Mark Zukerberg is the CEO and one of the original co-founders of Facebook. Facebook was originally only available to university students, but once it opened up to the general public it became the most popular social network in the world.

Image: James Martin/CNET

By Conner Forrest

Conner Forrest is an analyst for 451 Research. He was formerly a Senior Editor for TechRepublic.