Mark Zuckerberg poses in a hoodie at the Allen & Co. Media summit in Sun Valley, Idaho on July 7, 2010. Credit: Nati Harnik The sun is out, the flowers are blooming and you've been working out for months to look your best. You know what that means -- it's hoodie season. At least, it is if you're Mark Zuckerberg, king of hoodies. The Facebook CEO turns 30 years old Wednesday, so we compiled a f
