Major Moves Website opposing the 2005 Department of Transportation ten year plan with the same name, with special focus on the Indiana Toll Road lease plan.
Michiana Roads Information and photos covering Southwestern Michigan and North-Central Indiana (Greater South Bend).
The David Letterman Expressway Page citing references to this non-existent designation along Interstate 465 in the Indianapolis area.
U.S. 31 Coalition, Inc. Promotes the upgrade of this highway between Indianapolis and South Bend.
