When Mark Zuckerberg was 19 years old, he launched Facebook from his Harvard University dorm room. (Some cynics might say "stole" is a better word than "launched," but who wants to start that debate?) Since then, he's made Facebook one of the internet's most valuable brands. And as he's done it, his net worth has climbed as high as $81.6 billion, making him the world's third-wealthiest man behind Amazon founder Jeff Bezos and Microsoft co-founder Bill Gates.
St. Patrick's Day was here last week, and every "Irish for a day" tippler in your social circle will take advantage of this convenient excuse to haul grandma out of the house for a little day-drinking. (It seems unnecessary on a Saturday, but whatever.) Faux-Irish saloons across America are tapping kegs of Guinness, pouring shots of Jameson, and covering their walls and ceilings in every Celtic cliche they can find: the shamrocks, the hats, the green beads, and of course, the leprechaun jealously guarding his pot of gold at the end of the rainbow.