Tower Maps - http://www.towermaps.com/

Tower Maps database contains over 200,000 antenna sites in North America and is compiled from over 240 tower owners. Site are predominantly towers, but also include building rooftops, water tanks, raw lank silos and other structures. The information includes: Site Name, Latitude, Longitude (D-M-S and decimal degrees), AGL Height, AMSL Height, Ground Elevation, Site ID, Owner/Manager Name, Leasing Agent Telephone, Type of Structure, Street Address.

"We are continuosly updating the data and offer this to our subscribers. The data is used by wireless carriers, tower owners, rooftop managers, RF engineers and others to select antenna locations for wireless communications." - David Ward

Sample data: Codington County, SD
See map image and download a sample MapPoint 2002 data set.

RoutePointe - http://www.routepointe.com/

"RoutePointe is an application that uses MapPoint 2002 and the OCX control to create and manage bus routes for schools and transportation co-ops.

It uses an ODBC database back-end to store information about students, schools, school districts, vehicles and uses that data to establish reasonable routes." - Robert Hutchison

See map images 1, 2, 3, 4.