From a high-level review of four leading "tracker busters"
"“More than just being creepy, it’s a huge violation of privacy,” said Cooper Quintin, a privacy advocate for the Electronic Frontier Foundation, a digital rights nonprofit that also offers the anti-tracking tool Privacy Badger. “People need to be able to read things and do things and talk about things without having to worry that they’re being watched or recorded somewhere.”
We took a close look at four free privacy tools: Ghostery, Disconnect, RedMorph and Privacy Badger. We tested them with the Google Chrome browser on the top 20 news websites, including Yahoo News, CNN, The Huffington Post and The New York Times."Free Tools to Keep Those Creepy Online Ads From Watching You - The New York Times