OK so you know that being able to serve adverts to people that mean something to them is a good idea. I was watching an episode of "Being Erica" a new series from CBC and heard a song a liked and remembered. Pick up the words that follow each other "With the rhythm of my heart is beating like a drum" paste into Google and find that the singer is (uhhm forgotten but shouldn't) Rod Stewart. You click on link and find on imdb.com that it is no other than "Rod Stewart"
And there you kind of freak out because on the imdb.com web site you see an advert for "La Redoute", a French catalogue company, specifically advertising the Braun Oral B electric toothbrush that you looked for on their site last week. Freaky and not cool!