This is from a Japanese news item that I saw last month. (And you thought internet video was impressive.)
Internet users can already listen to streaming music while viewing other sites, but NTT Communications Corp. wants to entertain the sense of smell as well, using a technology it has dubbed Fragrance Communication. The company will begin field trials on a pair of Internet-based services this July using a fragrance generator called the "i- Aroma," which connects to the PC and will make and emit specific aromas based on fragrance recipes downloaded from the service sites. Participants in the trials will have the opportunity to experience some 14-18 aromas over the course of the day as the different recipes are transmitted from the services.