[harel]

Retargeting companies share their cookies amongst themselves. So when tracked by company A goes to a site published by company B, company A gets notified. You are tracked, be sure of that. It might not be enough data to show you exactly the ads you might accidently care about but its close enough and closing in all the time.

[john61]

No targeting does not work in my case. Not at all. The targeting does not get better. But I surf with JS disabled when possible (you'd be surprised how many sites actually work _better_ with JS turned off) and ghostery. I use duckduckgo and do not use any Google Service or Facebook, Twitter. And yes I still enjoy a rich online live and have a lot of friends online and offline.