Portfolio.com

How the housing slump caused the best-laid plans of private equity to go awry.

Shelly Lazarus, longtime C.E.O. of ad giant Ogilvy & Mather Worldwide, explains the firm's recent management shuffle, its attempts to land new accounts, and what comes next.

Tough times are coming for BIZ Experiencess as market turmoil cools the I.P.O. market, a New York venture capital investor says. Murdoch blundered in not making the Wall Street Journal free, he adds.

Shares surge after a new chairman is named.

What began as a do-gooder effort in the Third World has quietly become cutthroat competition. Now one firm, Intel, has broken ranks with other behemoths trying to develop technology that is both affordable to buy and build.

A back-of-the-napkin calculation of just how much the scandal-plagued star is worth to the multitudes who make money off her.

The film world's best and worst financial performances of 2007.

Harry Reid, the Democrats' Senate leader, is a darling of national environmentalists.

Why Eddie Lampert's failing Sears-Kmart experiment could mean trouble for dealmakers everywhere.

Vanderbilt hoarded his fortune; MacArthur, to thwart Uncle Sam, gave his to charity.

Online upstarts, some backed by major media companies, are looking to take Google's video site off the air.

Offsetting carbon emissions may be the trend of the moment. But for TerraPass' Tom Arnold, it started as a calling.

When pleasing one side comes at the expense of disappointing the other, sales reps tend to underperform.

As high technology and biotech boom, patent and intellectual property lawyers are in greater demand than ever before. Here are some of the sharpest.

Rejected by ABC, two TV veterans are launching a Web series and a social network at the same time. Will the kids respond?

Hollywood's screwball king and the venture capital firm Sequoia Capital are rewriting the rules of the entertainment business. But will Funny or Die survive?

The buzz about this boomtown of 18 million on China's eastern seaboard has become so loud that it threatens to drown out the city's chaotic traffic.

G.P.S. units are increasingly geared to specific sports.

A back-of-the-napkin analysis of the politically explosive blog.

Women's leadership style is ideally suited to today's business challenges. Increase your firm's competitive prowess by tackling the obstacles to women's progress.

Today's kids are busy and their parents demanding. Twenty-five-year-old Vanessa Wauchope has cashed in on their needs with a million-dollar child-care business.

A high-tech looking glass could be a dressing-room innovation or an annoyance.

Most of the time the answer is no, but there are exceptions.

Warren Buffett gets stirred up; candymakers battle. A proposal to redefine chocolate is roiling the nation's $16.3 billion industry.

We rounded up the world's most prolific inventors alive-three of them have more patents than Thomas Edison-and asked them the big question: Where do the big ideas come from?

New proof that it pays to be charitable.

Tony Fernandes had no aviation experience when he founded his no-frills carrier, AirAsia. It's now among the fastest-growing airlines in the world.

Why a mental-fitness program may be the start of something big.

A passive boss can wreak just as much havoc in the workplace as a bullying one.

Even professionals who work 24/7 need their sleep. Can businesses help?