Mark Zuckerberg, the 26-year-old CEO of Facebook, is Time magazine’s Person of the Year. Few technology leaders before him have been given the title. “You” got the honor in 2006 — “you” as in YouTube generation. Another Harvard dropout — Microsoft founder Bill Gates — got it in 2005, but he was one of a group of “Good Samaritans” recognized for their philanthropy. Amazon.com CEO and founder Jeff Bezos was named in 1999. The personal computer was crowned in 1982.