Facebook's Rise: Mark Zuckerberg's 5 Smartest Moves

Time's "Person of the Year" is Facebook co-founder and CEO Mark Zuckerberg. The 26 year-old Harvard dropout has transformed Facebook from a small network of Harvard students into the largest online network the world has ever seen.

Facebook's short history may not have been as dramatic as portrayed in the 2010 blockbuster The Social Network, but Zuckerberg's brainchild has had its fair share of ups and downs. Like any company, there have been good calls and bad calls, soaring successes and dismal fails.

We're looking back at the smartest decisions Facebook ever made, decisions that turned the spunky startup into a global behemoth and a household name. Take a look through our slideshow of Facebook's most strategic moves, and vote for the one you think improved the company most. As always, share your thoughts in the comments below.