Digital Billboard Safety Report – A report prepared for the National Cooperative Highway Research Program about potential safety hazards of digital billboards (2009).
Texas Protected Highways – A list from Scenic Texas of Texas highways protected from the installation of new billboards.
Scenic Texas – The website for a nonprofit organization dedicated to the preservation and enhancement of our state’s visual environment, with local chapters in Austin and San Antonio.
National Scenic Byways Program – A partnership between the Federal Highway Administration and local communities devoted to maintaining and protecting America’s scenic byways. Texas does not have any byways classified under the program.
Society Created to Reduce Urban Blight – An active Philadelphia organization devoted to maintaining visually beautiful public spaces, including advancing community input on outdoor advertising.