Billboards have been around for over 100 years in their modern format. We all know that the industry standards are wooden telephone pole, I-beam or steel monopole structures in sizes of 12’ x 24’, 10’6” x 36’ and 14’ x 48’. But yet there are new ideas that come up periodically as billboard owners attempt to find even less expensive methods to deliver billboard messages, many of which are in ad sizes all their own. So what are these experimental billboard concepts?