Who's selling it: Lamar Advertising Company
The specs: LED roadside SmartBoards in traditional billboard sizes. Lamar has a fully networked system in Pittsburgh and a smattering of SmartBoards in other U.S. markets.
Who's using it: Specialty department store Parisian frequently posts new creative to advertise its seasonal sales.
Who's selling it: AdSpace Media Networks
The specs: Fully networked LCD screens in Loews Cinemas and Westfield Group shopping malls, with an average of 10 displays per mall.
Who's using it: Ruth's Chris Steakhouse runs a schedule heavy in the pre-dinner 3 p.m. to 6 p.m. day part.
Who's selling it: Clear Channel Outdoor
The specs: Weatherproof-encased LED screens over 78 New York subway entrances. Clear Channel launches digital roadside billboards in Cleveland this month.
Who's using it: CNN changed its messages every day at 4 p.m. to promote that evening's prime-time lineup.