[froindt]

That'd work in this case, but would destroy lots of value when people like me would go in every few months and reset all my ad profiles. Then again, the total percentage of people who would care enough to go in and do that is probably pretty small.

[Klathmon]

I'm going to start sounding like I work for them, but Google already allows you to disable targeted advertising entirely, and Facebook at least let's you disable targeting for the vast majority of things (the major exceptions being age, gender, location, and the content of the page if I recall correctly).