Zuckerberg & Co. launched Thefacebook in February 2004 just for Harvard students. The opening screen even then hinted at wider ambitions. (Image courtesy Facebook)
Zuckerberg in his dorm room in Harvard’s Kirkland House, gazing at Thefacebook on the computer where not long before he had created it. (Photo Lowell K. Chow The Harvard Crimson)
The three roommates and partners at Harvard, spring 2004. From left, Moskovitz, Chris Hughes, and Zuckerberg. (Photo Ravi Ramchandani The Harvard Crimson)
Eduardo Saverin, a year ahead of Zuckerberg at Harvard, was a math whiz with business experience who helped fund Thefacebook’s launch, but later fell out with the other founders. (Photo Ravi Ramchandani The Harvard Crimson)
At Thefacebook’s 2004 summer rental in Palo Alto, the dining room table was the nexus. From left: Andrew McCollum (a friend who wasn’t working much on Thefacebook), Zuckerberg, and intern Stephen Dawson-Haggerty. (Photo Aaron Sittig)
At a 2005 company party: Ezra Callahan, Facebook’s sixth employee (depending on how you count), with Zuckerberg and, on right, Kevin Colleran, ace advertising salesperson. (Photo courtesy Kevin Colleran)
When Facebook, now without “the” in its name, moved around the corner to a fancier Palo Alto office in September 2005, Zuckerberg wanted to retain the funky feel. He again hired graffiti artist David Choe. (Photo Kevin Colleran)
In the first real office, on Emerson Street in Palo Alto. Underneath David Choe’s looming murals are, from left: Zuckerberg, Moskovitz, and Sean Parker, then Thefacebook’s president. (Photo Jim Wilson The New York Times/Redux)
Matt Cohler, left, arrived at Thefacebook in early 2005 and brought a much-needed professionalism, serving as Zuckerberg’s “consigliere.” Laughing at right in the background is designer Aaron Sittig, another early employee who was influential (and still is). (Photo Ben Blumenfeld)
Zuckerberg and Parker hired Kevin Colleran, left, without meeting him in person. This picture of him with rapper 50 Cent was on his Facebook profile page. Zuckerberg thought he’d hired 50 Cent. (Photo courtesy Kevin Colleran)
One of many overcrowded offices, on University Ave. in Palo Alto in 2007. From the beginning Facebook has had trouble keeping up with its own growth. (Photo Kevin Colleran)
In May 2007, Facebook announced its biggest change yet—becoming a platform for applications created by others. Zuckerberg spoke at the San Francisco event called f8 (programmers wrote apps afterward for eight hours). Following f8, growth came even faster. (Photo Andrew Bosworth)
On February 4, 2008, a sea of people filled Bogota, as well as every other city in Colombia, in protest against the FARC terrorist group. It all started on Facebook, in Oscar Morales’s upstairs bedroom in Barranquilla. (Photo by Alberto Acero/courtesy Periodico El Tiempo)
Sheryl Sandberg left Google in early 2008 to help turn Facebook into a real business. She and Zuckerberg established an effective working relationship. Revenues have grown to near $1 billion annually. (Photo courtesy Facebook)
The Facebook Effect Page 44