A Wall Street Journal investigation finds that one of the fastest growing businesses on the Internet is the business of spying on American consumers. First in a series.

The largest U.S. websites are installing new and intrusive consumer-tracking technologies on the computers of people visiting their sites—in some cases, more than 100 tracking tools at a time—a Wall Street Journal investigation has found.

The Internet is rife with surveillance technology, but you can protect your privacy by following these steps.

The dollar advanced on the euro but retreated against the yen as a report on U.S gross domestic product stoked worries about a delayed rebound for the U.S. economy.

Nokia Siemens Networks is talking to several buyout firms about a potential cash infusion of at least $1 billion in exchange for a minority stake.

Google CEO Schmidt said the company doesn’t know if what now seems to have been a minor disruption of its availability in China was evidence of Beijing’s power.