The difference between NAI's own opt-out tool and Google's work is what's under the hood: NAI allows you to opt out, and communicates that via cookie, but that can be deleted whenever you erase your saved history. By contrast, Google's tool keeps the no-lever pulled permanently: It means you can avoid seeing targeted ads from NAI members, including Google and Yahoo, even if you delete your full browsing history. We hear Google will offer the code as open source, and that the company is expected to roll out a similar tool for other browsers in the future. Keep your eyes peeled today, and find more on privacy after the jump.
