• Converting Addresses to/from Latitude/Longitude in One Step
• Geographic Nameserver - find out what the latitude/longitude coordinates are for any US city/location along with other statistics
• Global Gazetteer - directory of nearly 3 million of the world's cities and towns, sorted by country including maps and other info (this does not give U.S. Cities)
• Eagle Geocoding Technology - find accurate locations based on address
  • Test Drive - find latitude and longitude of a street address within the US
• Maporama - enter a street address for almost anywhere in the world and get a map with latitude and longitude coordinates of this location.
• National Imagery and Mapping Agency
  • Geospatial Sciences Division - info on satellite (GPS) and physical (WGS 84) geodesy
• Heavens Above Satellite Predictions - find out what satellites can be seen from your area, and when to look - enter your coordinates, or choose from their database of locations
  • Satellite Visibility Specificly for State College, PA
• TerraServer - satellite and aerial photographs and other maps of most of the US - really cool!!!
• MapQuest - maps, driving directions, places of interest, travel guide, and lots of other map related info (I don't know if you can get lat. and long. coordinates from here or not - at least I haven't found it myself yet)
  • Map a Lat/Long Coordinate
• USGS National Mapping Information - all sorts of mapping information
  • Geographic Names Information System - United States and Territories - detailed query form for locations of sites, features, counties, and all sorts of other things
• U.S. Gazetteer - info about a location in the U.S. (including latitude and longitude) based on Name or Zip Code
• Weather Underground - weather for just about any US location, query by city, state, zipcode, or county in the "Fast Forecast" (also gives latitude and longitude of the location)
  • Weather Underground Sky - sky map for State College, PA (lat = ~ 40° N); date, time, and direction can be change

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