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 tracking files represent the leading edge of a lightly regulated, emerging industry of data-gatherers who are in effect establishing a new business model for the Internet: one based on intensive surveillance of people to sell data about, and predictions of, their interests and activities, in real time.
- Read the article: The Wall Street Journal
