The Week: Advertising News - Fans' messages for Wispa

To celebrate the launch of Wispa Gold - a new caramel variant - Cadbury is offering its consumers the chance to put their own messages up on billboards around the country.

The confectionery company has sent an e-mail to fans directing them to a sneak preview of, a site on which they can log messages, from which the best will be chosen to appear on the posters. The site will launch officially on 7 September, when the bars go on sale.