The New York Post : Google and Mozilla Announce New Privacy Features

"On Monday, Mozilla and Google announced features that would allow users of the Firefox and Chrome browsers to opt out of being tracked online by third-party advertisers. The companies made their announcements just weeks after the Federal Trade Commission issued a report that supported a “do not track” mechanism that would let consumers choose whether companies could monitor their online behavior. "   ~Tanzina Vega

http://mediadecoder.blogs.nytimes.com/2011/01/24/google-and-mozilla-announce-new-privacy-features/?ref=technology

I find this addition to be a bit pleasing, however I can see problems. But we will have to wait and see what the actual outcomes are.