On Thursday, hearings began in Washington on the proposed "Do Not Track" list, which would be similar to the "Do Not Call" registry.
As it is, marketers can track your every move online to see which websites you visit and links you click on. It's used to target ads.
Marketing companies say they already provide opt-outs for consumers, but the Federal Trade Commission disagreed.
"Many of these mechanisms may also lead consumers to believe they are opting out of third party tracking when in fact they are simply opting out of receiving targeted ads," said David Vladeck with the Federal Trade Commission.
The FTC has not yet released any details of its plan on how it would implement a Do Not Track system.
