Wisconsin Department of Tourism (www.travelwisconsin.com) Produces tons of free guides on subjects like biking, golf and rustic roads; also has a free app.
Wisconsin B&B Association (www.wbba.org)
Wisconsin Highway Conditions (www.511wi.gov)
Wisconsin Milk Marketing Board (www.eatwisconsincheese.com) Provides a free statewide map of cheesemakers titled A Traveler's Guide to America's Dairyland.
Wisconsin State Park Information Park entry requires a vehicle permit ($11/38 per day/year). Campsites cost from $21 to $35; reservations (888-947-2757; www.wisconsinstateparks.reserveamerica.com; fee $10) accepted.