Take Zap! Tech Geeks, Starved for More Battery Power, Give Themselves a Charge.

Any geek can tell you that battery life hasn’t kept up with gadget innovations. But not to worry: Inventors are figuring out how to turn geeks into batteries.

Hollywood Loses SOPA Story

The entertainment industry moved to counter growing opposition to antipiracy bills that seemed certain to be laws just weeks ago.

Big Brands Like Facebook, But They Don’t Like to Pay

Everybody wants to be liked. The question for Facebook Inc. is how much advertisers are willing to pay for the opportunity.

The Long Haul to Capitalizing on Web Trends

Web companies often upend industries. But they can labor for years to fully make money on their revolutions.

Steve Jobs Funeral Is Friday

The funeral for Steve Jobs, Apple Inc.’s co-founder, is taking place Friday, according to a person familiar with the matter.

An Article of Faith for Marketers: Place No Faith in Articles

This is an article about articles. They’re going AWOL.

Kleiner Plays Catch-Up

Venture-capital firm Kleiner Perkins Caufield & Byers led the late-1990s dot-com frenzy with investments in Netscape Communications Corp., Amazon.com Inc. and, later, Google Inc.

Hackers Shift Attacks to Small Firms

Recent hacking attacks on Sony Corp. and Lockheed Martin Corp. grabbed headlines. What happened at City Newsstand Inc. last year did not. Unbeknownst to owner Joe Angelastri, cyber thieves planted a software program on the cash registers at his two Chicago-area magazine shops that sent customer credit-card numbers to Russia. MasterCard Inc. demanded an investigation, at Mr. Angelastri’s expense, and the whole ordeal left him out about $22,000.

The Perk Bubble Is Growing as Tech Booms Again

The social calendar posted on a wall at Internet start-up Airbnb Inc. is covered in multicolored sticky notes. A recent Wednesday was blocked out for a wine and cheese mixer and an all-hands talk on stock options. Friday brought a rooftop barbecue, and Saturday there was an air-guitar contest.

Congressmen Press Facebook On Privacy (Again)

How Facebook polices its wide world of apps is once again under the spotlight in Washington. On Wednesday, U.S. Reps. Edward Markey and Joe Barton sent Facebook CEO Mark Zuckerberg a two-page letter with questions about a security flaw that gave advertisers a way to access users’ personal information.