The article also discusses several interesting factors contributing to the lack of neon advertising - mainly from government restrictions to lack of advertisers' interest and environmental concerns. It concludes that - no matter, the use of high technology lighting in outdoor advertising will definitely go far in contributing to the brightening of
Another interesting web-article focuses on the need for regulatory improvements with the advent of digital outdoor advertising. In fact, with digital outdoor, the number of media spaces has been multiplied infinitely within the same physical space and the speed and low variable costs now allows for some special uses:
"One outdoor advertising company in Madison, Wisc., partners with local and state law enforcement to offer the digital billboards for Amber Alert messages for missing children, trumpeting the fact that an emergency message can be displayed within minutes of a request."