So, here's a little story. I was browsing domain names, looking to see whats taken etc. Well, I then log into my email account from a separate window, and in my inbox page, low and behold, the advertisement window at the top says the domain name I searched on register.com, and "don't let it get away?" That just shows reading cookies/history is getting more and more integrated with our browsing experience and advertising. Soon you'll do a google search for places to eat, and in another website it'll say xxx has cheeseburgers on sale.