Has anyone ever heard of junior billboard advertising? Its a much smaller version of the larger billboards around 72 sq. foot..I was searching on the net the other day, and learned about this..It really got me thinking about doing a venture like this..I would love to have 20 or 30 of those things bringing me monthly ad revenue..Does anyone know or have any experience in billboard advertising..If so your advice, or suggestions on how to get into something like that would be greatly appreciated!!