Lander's clothing store in Jamestown, N.Y., prepares for a "cash mob" to descend last week. Daniel Robison/WBFO hide caption

itoggle caption Daniel Robison/WBFO

Bolton Wanderers' Fabrice Muamba is obscured by medical staff trying to resuscitate him after collapsing. His teammate Ryo Miyaichi, right, and Tottenham Hotspur's Jermain Defoe, center top, watch. Matt Dunham/AP hide caption

itoggle caption Matt Dunham/AP

A shopper searches on her BlackBerry for coupons inside a Target store. Consumers with smartphones are changing the way stores set prices and track customer tastes. M. Spencer Green/AP hide caption

itoggle caption M. Spencer Green/AP

Kelsey Blodget of Oyster.com photographs the lobby of New York's Trump SoHo hotel. The website relies on tech-savvy workers to create online reviews and track hotel bookings. Oyster.com hide caption

itoggle caption Oyster.com

The Homeland Security Department's Control System Security Program facilities in Idaho Falls, Idaho, are intended to protect the nation's power grid, water and communications systems. U.S. security officials and members of Congress are convinced a new law may be needed to promote improved cyberdefenses at critical facilities. Mark J. Terrill/AP hide caption

itoggle caption Mark J. Terrill/AP

Employers have been asking for prospective employees' Facebook username and passwords to do some extra research on whom they may be hiring. Leon Neal/AFP/Getty Images hide caption

itoggle caption Leon Neal/AFP/Getty Images

Civil rights leaders and residents of Sanford, Fla., attend a meeting Tuesday to discuss the death of Trayvon Martin, who was shot by a neighborhood watch captain. The Justice Department and the FBI opened an investigation into the shooting, and the local state attorney announced that he had asked a grand jury to investigate. Gerardo Mora/Getty Images hide caption

itoggle caption Gerardo Mora/Getty Images

Customers talk with Apple employees, in blue, inside a San Francisco Apple store on Friday, the first day of the launch of the new iPad. Paul Sakuma/AP hide caption

itoggle caption Paul Sakuma/AP