The 50 Who Matter Now

In our second annual ranking, Business 2.0 has compiled an unabashedly subjective list of people, products, trends, and ideas that are transforming the world of business.

Mark Zuckerberg
Mark Zuckerberg
Founder and CEO, Facebook

Rank: 34

Why he matters: Zuckerberg was a 19-year-old Harvard student when he launched a social-networking site called Facebook for the in-the-know college crowd. Three years later Facebook is the sixth most visited site on the Internet, with some 24 million active users and enough clout to turn down a reported billion-dollar buyout offer from Yahoo (and to make us regret our decision to put him on our online-only list of the 10 Who Don't Matter last year).

In September, Facebook opened its doors to anyone with an e-mail address, and in May it announced plans to add free classified ads. It also gave outside developers access to Facebook's underlying code. In a matter of days, one application, iLike, had attracted nearly half a million users.

Adelson

Calacanis

Bianchini

Iacobucci, Raburn

Graham

You

Williams

Musk

Melton

O'Reilly

Edmond

Zell

Huffington

Fake Steve Jobs

Walsh

Draft

Zuckerberg

Branson

Nooyi

Ambani bros.

Phillips

Negroponte

Hundt

Friis, Zennstrom

Cogan

Rosedale

Fadell

Kao

Arrington

Stephenson

Miyamoto

Eberhard

Agile software

Li

Diller

Chizen

Hurd

Wales

Bezos

McAndrews

Watanabe

Chambers

Schwarzenegger

Decker

Murdoch

Jacobs

Moritz

Private equity

Jobs

Google trio
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Market indexes are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer LIBOR Warning: Neither BBA Enterprises Limited, nor the BBA LIBOR Contributor Banks, nor Reuters, can be held liable for any irregularity or inaccuracy of BBA LIBOR. Disclaimer. Morningstar: © 2014 Morningstar, Inc. All Rights Reserved. Disclaimer The Dow Jones IndexesSM are proprietary to and distributed by Dow Jones & Company, Inc. and have been licensed for use. All content of the Dow Jones IndexesSM © 2014 is proprietary to Dow Jones & Company, Inc. Chicago Mercantile Association. The market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. FactSet Research Systems Inc. 2014. All rights reserved. Most stock quote data provided by BATS.