Given Facebook's scope, this could be a very good thing

Facebook to Send AMBER Alerts to Users

AMBER Alerts will now be sent out via Facebook, in an effort to bring more abducted children home safely.
Facebook, The U.S. Department of Justice (DOJ), and the National Center for Missing and Exploited Children (NCMEC) announced in a press conference today a new partnership to disseminate the alerts. Tomorrow is the 15th anniversary of the kidnapping and murder of the little girl for whom the AMBER Alert Program is named.

If you're in Kentucky:

Kentucky Amber Alert Facebook Page (just hit 'Like' to get updates)

Otherwise, just search for your own area's page on Facebook and like or become a fan of it. This is the best AMBER-related idea I've seen since I realised that our state's lottery machines sent AMBER alerts to all those convenience store clerks. :)