SF Zoo Critter Quest

The San Fransisco Zoo has a fun participatory ad campaign called Critter Quest.  They use a series of 4 bus shelter poster depicting pieces of animals.    Passersby are encouraged to take a picture of themselves as a peacock, giraffe, butterfly or kudu and send it to the San Fransisco Zoo website gallery.  This is a great advertising idea.  It's fun, it gets people interested and involved, and it gives people a reason to visit the website.  (Found through Marketing Alternatif).