The Keep My Opt-Outs is available as an extension for download in Chrome.
The reason behind the Keep My Opt-Outs is the FTC's interest in protecting US consumers from AD tracking companies, with "Do Not Track" initiative. The Network Advertising Initiative (NAI) formed by a group of advertising companies already let people opt out of personalized tracking for the purposes of personalizing advertisements. There are also many online advertisers and trade associations have also joined a major self-regulatory effort to enforce a uniform privacy icon for ads, as well as opt-out guidelines.
The Google's Keep My Opt-Outs is filling the technical void that exists today to just that, The extension alleviate most of the problems of opting out from these ads and yet allow regular ads to appear.
You can read more at Google Public policy blog. Sphere: Related Content