Zip Television, the Interactive TV consultancy, is conducting a major survey of marketers attitudes to iTV as an ad medium of the future. Sponsors include the DMA, Sky, Channel 4, and Claritas. The results will be published in Marketing. Anyone wishing to take part in the survey should go to www.ziptelevision.com. Those taking part will receive a full copy of the survey's findings and will be entered for a free prize draw to win more than £2000 worth of free iTV consultancy.