The following list contains links to the Route 66 Association of each state. It has a link to their facebook page, followed by a link to their official website.
NATIONAL HISTORIC ROUTE 66 FEDERATION – https://www.national66.org/
ILLINOIS – https://www.facebook.com/il66assoc – http://il66assoc.org/
MISSOURI – https://www.facebook.com/missouri66 – http://www.missouri66.org/
KANSAS – https://www.facebook.com/kshistoricroute66 – http://kshistoricroute66.com/
OKLAHOMA – https://www.facebook.com/OklahomaRoute66 – http://www.oklahomaroute66.com/
TEXAS – https://www.facebook.com/TexasOldRoute66Association – www.rt66oftexas.com
NEW MEXICO – https://www.facebook.com/nmroute66 – http://www.rt66nm.org/
ARIZONA – https://www.facebook.com/azroute66 – http://www.historic66az.com/
CALIFORNIA – https://www.facebook.com/groups/Route66CA – https://www.route66ca.org/