ACME Mapper 2.0
Recreation, Roads and Highways, Photography, Aerial - Acme Mapper. Front-end service which applies TerraServer photography to a set of variables.
http://mapper.acme.com/
Aerial
Iowa Geographic Image Map Server
Recreation, Roads and Highways, Photography, Aerial - Iowa Geographic Image Map Server. Includes digital and infrared images for the state.
https://ortho.gis.iastate.edu/
TerraFly Geo Databases at FIU sponsored by NSF, USGS, NASA, and IBM
Recreation, Roads and Highways, Photography, Aerial - TerraFly. Provides United States Geological Survey photographs overlaid by street names, searchable by street address.
http://www.terrafly.com/