Not all but most of the major sites. I'd expect all of the top 25 sites on Alexa to be equally abusive with the exception of Wikipedia. The difference between

Not all but most of the major sites. I'd expect all of the top 25 sites on Alexa to be equally abusive with the exception of Wikipedia. The difference between most sites (excl. Google) and Facebook is that Facebook have more users and more usage. They're not more abusive, their tracking just reaches more users. And please don't propagate the false notion that Facebook sell personal information.