Cityfile: New York's Most Notable and Influential

BusinessWeek conducted a little investigation recently and discovered that while a number of prominent CEOs have joined social networking sites like Facebook and LinkedIn over the past few years, very few had managed to make many friends. What about New York's population of socialites and do-nothing fameseekers? Naturally, they have no trouble making friends when it comes to Facebook. But that isn't the case with business-centric LinkedIn, where many of them lead lonely online existences and—worst of all—they've been forced to actually fill something in under the headers "job title" and "employer." How can you possibly be expected to have either if you spend your days sleeping and your evenings out at parties? A few examples—including Annabel Vartanian and Alex McCord (left)—after the jump. More

Joe Zee's 1,714 Nearest and Dearest | J.Lo isn't one of them, but Elle creative director Joe Zee isn't suffering from a shortage of notable friends on Facebook. Just a few of the 1,714 people you might recognize: Narciso Rodriguez, Alice Roi, Samantha Ronson, Charlotte Ronson, Jane Rosenthal, Anne Slowey, Al Reynolds, Leven Rambin, Lara Shriftman, Horacio Silva, Russell Simmons, Peter Som, Natalia Vodianova, Pam Wasserstein, Linda Wells, Daria Werbowy, Emil Wilbekin, Arden Wohl, Dennis Basso, Hamish Bowles, Bryan Boy, Maer Roshan, Ramona Brodsky... More

Kelly Killoren Bensimon's Social Network | Kelly Killoren Bensimon is a busy woman what with her new TV show (Real Housewives of New York City), columns in Page Six and Gotham magazines, her busy social calendar, and the two kids she has with her ex-husband, famed photog Gilles Bensimon. But she makes time for Facebook, too! Just a few of her 484 online pals whose names you might be familiar with:  Susanne Bartsch, Mark Birnbaum, David Blaine, Dennis Basso, Serena Altschul, Mark Baker, Bryan Bantry, Fabian Basabe, Georgina Chapman, Jamison Ernest, Cristina Greeven Cuomo, Donny Deutsch, Rocco DiSpirito Lauren Santo Domingo, Lisa Gastineau, Patrick McMullan, Minnie Mortimer, John Bartlett, Hud Morgan, Olivia Palermo, Alex Von Furstenberg, Anne Slowey, Russell Simmons, Linda Wells, Rob Wiesenthal, Bronson Van Wyck, Lara Shriftman, and, of course, Andy Cohen, the Bravo exec who was responsible for casting her in Real Housewives. [Kelly Killoren Bensimon]

Networking with Retirees | Looking for some new friends on Facebook? Meet Ivy Bean, who, at the tender age of 102, is officially the oldest member of the social network. [Daily Mail]