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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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer. Morningstar: © 2018 Morningstar, Inc. All Rights Reserved. Factset: FactSet Research Systems Inc. 2018. All rights reserved. Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor's Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2018 and/or its affiliates.