For Guinness, BBDO decided that instead of freely disseminating ads online or on TV, it would turn its media messages into prizes.
There's a Guinness ad hidden somewhere on the 'net and it is your job to find and launch it. ("Why us?" we wonder.) To do this, you have to unravel a mixed bag of clues, codes and puzzles.
The campaign involves a village of some sort. This is the mayor, Juan Ramon. (We like how you can hear sinister background laughter at the end.)
If the idea of hunting down a Guinness ad is irresistible and you're ready to jump on and go, you may also want to "peruse" (their words) this letter.