Wednesday, February 16, 2011

The internet is spying on you

From The Week
POSTED ON SEPTEMBER 10, 2010, AT 10:32 AM
Every time you go online, sophisticated data miners are tracking your every move. What do they know about you?

How frequently am I followed online?

Constantly. Your computer leaves a unique digital trail every time you visit a website, post a comment on a blog, or add a photo to your Facebook wall. A growing number of companies follow that trail to assemble a profile of you and your affinities. These profiles can contain shocking levels of detail—including your age, income, shopping habits, health problems, sexual proclivities, and ZIP code—right down to the number of rooms in your house and the number of people in your family. Although trackers don’t identify their subjects by name, the data they compile is so extensive that “you can find out who an individual is without it,” says Maneesha Mithal of the Federal Trade Commission.

How does the technology work?