"Radio offers the greatest proximity to shopping occasions". (percent exposed to given media within the half hour that true shopping occurs) Radio: 19% Mobile/web app : 7% Internet: 5% Print: 2% Live TV: 2% Source: http://www.clearchannel.com We use all the above except mailers & brochures. Still working on a "mobile app" for our (pretty basic) website. Also waiting for upgrades for our site. I just thought I would throw this out for you to chew on. Clear Channel is Nationwide and is HUGE in all forms of media. Thought? Ideas? Experience? Thanks!