Guerrilla marketers use mobile billboards for surprise ad attacks - Yahoo! News

Guerrilla marketers use mobile billboards for surprise ad attacks - Yahoo! News: "Guerrilla marketers use mobile billboards for surprise ad attacks by Ian Sherr
Tue Sep 30, 10:09 AM ET

SAN FRANCISCO (AFP) - In a world where everything is mobile, even billboards are starting to move in surprising ways."