This happens quite often, and it’s what us marketeers like to call a catalyst-effect — a correct advertising campaign can multiply its value in the conventional market by turning into a viral success.
Examples are common, but I’m going to make a little prediction here… In a couple years, this Superbowl ad by Victoria’s Secret will still be getting views on video sites such as Youtube. I’m SURE! :D
Why? Adriana Lima. Breasts. Underwear. It works!