What types of advertising campaigns are most effective?

We are all influenced by media and advertising. cite some specific examples.

What types of advertising campaigns are most effective?
The ones where you don't realise its advertising.





So-called subliminal advertising is banned because it's so effective - for example flashing an image on a TV or movie screen for a fraction of a second. Your conscious mind doesn't register what you've seen but your subconscious gets the message and suddenly you feel like buying a particular brand of ice cream or whatever was flashed on the screen.





A similar (permitted) form of advertising like this would be to get a bunch of people with the product pictured on their T-shirts to just walk up and down a street. Even if you didn't spot that they were all wearing the same brand or logo, your mind would be more receptive to than brand the next time you wanted that type of product. (eg Pepsi could do it and then next time you were thirsty you would be more inclined to buy a Pepsi)
Reply:Newspaper ads! Magazine ads!Bilboads
Reply:radio because people hear things over and over and they retain it much better then anything else... look at your favorite song on the radio you know the words ...