What exactly do they do with this information? Is it just to ram advertising in my face? They should know that I have an incredibly low tolerance for aggressive advertising when I am not specifically google searching something. I will never ever buy anything that is pushed in my face and if the pushing is agregious enough I have a database full of names I will never buy from. I will also never buy from anybody who calls my cell phone. Anybody who stuffs my mail box or emailbox. And if I give anything to any charity, and suddenly afterward my mailbox fills to the brim with pleas from other charities, the original charity and every charity that flooded my mail goes into the database
It depends on the information they obtain. Online accounts like Amazon, Walmart, or whatnot....they can possibly enjoy a shopping spree paid for by you.