Been reading allot lately about online tracking and user profiling via clickstream data, I have to admit call me naive but until a year or so ago I thought what I did on the internet was fairly private and anonymous (little did I know) just wondering if anyone out there knows to what extent you are followed over the internet I know my ISP can see everything I do and probably records my clickstream then sells it to whoever but who else can form a complete picture of what I do online or track me over the entire internet? Say I log into Facebook, I figure whilst there every profile I view, every photo I see, every page I like, every comment I leave is recorded, then I sign out go to another website view some trainers, football boots, ect... They're still watching me yeah? coz when I log back into Facebook I'm bombarded with adverts for sports goods and up coming sporting events. My real real question is to what extent are they watching my can they see every Google search I make, every website I view, every file I download, every post I make in a forum, or can they only see what goes on, on sites with which they are affiliated, in other words if they have all my personal identifiable information from when I logged in, can they tie it to every single thing I do online, every query I make in Google every embarrassing illness I research? or do they just record what I'm doing on certain sites? Cheers gota say I know very little about this but the more I learn the worse it gets.