Have a few hours to kill at work? You'd be well-served by poking around Cityfile, a new site that's essentially a cheeky, Wiki-style Facebook for 2,000 of New York's most notable power players. Profiles for the chosen few—everyone from Anna Wintour to Puff Daddy—are written in-house, though users can sign up to contribute; most contain fun little tidbits that you've probably forgotten and gleaned from other sources. (Film exec Harvey Weinstein, for example, blames his legendary temper on "unhealthy glucose levels," which makes perfect sense to us.)

There's a pretty exhaustive "list" section, in which you can browse for folks in such categories as "once married to a second cousin" (hey Rudy Giuliani), but we decided to come up with our own: The real names of famous folks:

Moby, musician: Richard Melville Hall
Wendi Deng, wife of Newscorp honcho Rupert Murdoch: Deng Wenge
Natalie Portman, actor: Natalie Hershlag
Ice-T, rapper: Tracy Morrow
Bee Shaffer, daughter of Anna Wintour: Katharine Shaffer
Ghostface Killah, rapper: Dennis Coles
Jon Bon Jovi, rocker: Jon Bongiovi
Jon Stewart, TV host: Jonathan Stewart Leibowitz
Taye Diggs, actor: Scott Diggs
Jann Wenner, Rolling Stone publisher: Jan Wenner (he added an extra "n")
Graydon Carter, editor, producer: Edward Graydon Carter
Ja Rule, rapper: Jeffrey Atkins
Faith Popcorn, futurist, author: Faith Plotkin
Geraldo Rivera, TV reporter : Gerald Rivera
Joanna Angel, alt-porn princess: Joanna Mostov
Ralph Lauren, fashion tycoon: Ralph Lifshitz
Joan Rivers, TV personality: Joan Molinsky
Richie Rich, fashion designer: Richard J. Eichhorn
Keith Gessen, writer: Kostya Gessen
Jason Binn, publisher: Jason Binstock
Simon Oren, mega-restaurateur: Oren Simon
Merlin Bronques, hipster photographer: Merlin Mondesir
Bunny Williams, society decorator: Bruce Williams