You are tracked online with cookies, beacons, and other tracking devices.
A Wall Street Journal study published on July 31, 2010 concluded:
• The study found that the nation's 50 top websites on average installed 64 pieces of tracking technology onto the computers of visitors, usually with no warning. A dozen sites each installed more than a hundred. The nonprofit Wikipedia installed none.
• Tracking technology is getting smarter and more intrusive. Monitoring used to be limited mainly to "cookie" files that record websites people visit. But the Journal found new tools that scan in real time what people are doing on a Web page, then instantly assess location, income, shopping interests and even medical conditions. Some tools surreptitiously re-spawn themselves even after users try to delete them.
• These profiles of individuals, constantly refreshed, are bought and sold on stock-market-like exchanges that have sprung up in the past 18 months.
....Consumer tracking is the foundation of an online advertising economy that racked up $23 billion in ad spending last year. Tracking activity is exploding. Researchers at AT&T Labs and Worcester Polytechnic Institute last fall found tracking technology on 80% of 1,000 popular sites, up from 40% of those sites in 2005.
....Targeted ads command a premium. Last year, the average cost of a targeted ad was $4.12 per thousand viewers, compared with $1.98 per thousand viewers for an untargeted ad, according to an ad-industry-sponsored study in March.
A lawsuit by Joseph Malley and David Parisi alledges that about 6% of of major sites such as MySpace, ABC, NBC and others use flash cookies that re-spawn cookies that uses have delated.
Privacy Choice reveals what major websites are monitoring.
See what they know about you.
