Maine Sign Association www.mainesignassociation.com
United States Sign Council www.ussc.org
International Sign Association www.signs.org
Sign Builder Illustrated magazine www.signshop.com
Signs of the Times magazine http://www.stmediagroup.com/index.php3?d=pubs&p=st
Sign Business Magazine www.signbusinessmag.com
SignCraft www.signcraft.com
