A ‘Do Not Track’ option on internet browsers to stop advertisers from offering targeted advertising by tracking your activity is unlikely to be here in the new future.
The tracking can be turned off on most ads by clicking “AdChoices” or similar and deselecting that advert from the tracking page that is displayed. This tracking does not save any information that can be read by people, only for robots to use and offer you targeted advertisements such as products you recently viewed on Amazon for example.
Advertisements fall into a different area, and relevent advertisements do get a better click through rate. This means if a Do not track button is to be implemented, it could cause a loss of revenue for people who rely on Click based advertising on their websites. CPM (Cost Per Thousand Impressions) based networks may be fine however.
It looks ‘impossible’ that the option will be implemented before the end of the year. Perhaps this will be a 2013 feature. Some consumers feel that targeted advertising is actually useful however.