As an update from the original post, Palatine, IL has been removed from the MAIG website however Waukegan and Evanston are still listed but w/ the former mayors. Requests for information have not been returned.
Here is the current info for Evanston:
MAYOR Elizabeth B. Tisdahl
2100 Ridge Ave., Rm 2500
Evanston, IL 60201
847.866.2979 fax: 847.866.2978
As of this writing, the official Waukegan, Il site appears to be down but there is a possible contact for the current mayor here.
As always, be polite.
Info for IN and PA mayors available.