Map References  

    CyberRouter
    National Atlas 
    Map Quest 
    Rand McNally's  PDF
    MapBlast!  On line only 
    Expedia   

Climate 
    Weather Underground  Current Weather Satellite
    Spatial Climate Analysis Service  Precipitation maps (Oregon State U) 

History/Various  
    Library of Congress  
    Railroad  (LC) 
    CIA  political 

Relief Maps 
    Raven Maps & Images
    Applied Physics Lab Johns Hopkins U

Satellite 
    Kontempa International
    Environmental Systems Research Institute 

Topgraphic Maps 
    USGS topographic maps 
    Topozone online maps
    MapTech  online
    DeLorme  updated 
    Topo Interactive  Ntl Geographic 
    Tom Harrison Maps   California 
    Green Trail Maps  Washington/Oregon 

Cartographic Images
Cedar: National Address Server
Geographic Names Information System (United States Geological Survey)
Getty Thesaurus of Geographic Names
How Far Is It?
Maps on Us
Microsoft TerraServer aerial photographs
National Atlas of the United States USGS
National Geographic Map Machine
Perry-Castaneda Library Map Collection 
Tiger Mapping Service (U.S. Census Bureau) generate quality maps of anywhere in US using public data
U.S. Gazetteer (Census Bureau)
World Gazetteer current population, cities, towns, flags, administrative areas