The document discusses sensory effects and their potential use on the World Wide Web. It introduces MPEG-V sensory information and the Sensory Effect Description Language (SEDL) for annotating multimedia content with metadata describing sensory effects like light, wind, and vibration. Software tools are presented for annotating, simulating, and playing sensory effects. Finally, the document considers how sensory effects could be embedded, synchronized, and interpreted in web documents and browsers in the future.