Fast Company: Facebook #1

Facebook, which is just turning six, has achieved a level of maturity most wags thought would never come. Somewhere along the road to becoming the platform of choice for 400 million users in every country on earth, the company grew up. Baby photos now dot the worktables at its Palo Alto headquarters. Chefs provide free gourmet fare in the company cafeteria. And the founder, who once coded the site while dashing between makeshift offices in…