Sorry, I do not believe this. I do believe that Google doesn't want ads served through the site that's actually being visited, because it reduces Google's visi

Sorry, I do not believe this. I do believe that Google doesn't want ads served through the site that's actually being visited, because it reduces Google's visibility into what's going on, which affects both Google's semi-legitimate interests, like being able to detect click fraud, and Google's total control over information that might be used for targeting. I also believe that many of the sites don't want that, especially the smaller ones. It'd be more complicated for them to set up, and would mean they needed more bandwidth. I do NOT believe that Google actually cares enough about user's privacy per se to do much about it. If that were the case, Google itself wouldn't collect about 95 percent of what it actually does collect. User privacy sounds good as an excuse, though.