Google Maps
Search both aerial photos and by street map.

Home Town Gazetteer
Look for location information based on town name, county name or zip code. Includes links to aerial, regional, local and topographical maps.

Mapquest
Includes maps, driving directions and road trip planner.

MapsOnUs
Yet another site to search for driving directions and maps.

MSN Virtual Earth
Search by keyword or address to find detailed satellite and regular map views.

Perry-Castañeda Library Map Collection
Find current and historical maps. Also features maps of current interest. From the University of Texas at Austin.

ShtetlSeeker
JewishGen ShtetlSeeker is a database containing the names of all localities in the 31 countries of Central and Eastern Europe, plus all of the former Soviet Republics, and Turkey. This a great place to find the location of very small towns.

Yahoo Maps
More maps and driving directions.