Here are some longitude and latitude tools that you may find useful.
MapQuest allows you to enter a map coordinate (longitude and latitude) and it will display a map of that area.
Getty Thesaurus of Geographic Names
This is not strictly an address to longitude and latitude conversion tool, but is listed here for its sheer
usefulness when you are looking for a place in the world. Enter the country or city name into this tool, and you get
a whole lot of information about that place, the least of which is its longitude and latitude.
Another online tool that allows you to find the distance between two points in the world, given their longitude and latitude.
You can also type the names of the places to have the online service compute the distance. The results include the distance (in statute miles,
nautical miles and kilometres), the heading between the two locations, and some details about the two places, including their elevation.
ZIP Code to Longitude and Latitude
Do you have a US zip code that you want to have more information
about? This tool not only converts the zip code to the
longitude and latitude, but it tell you things like the
time zone and other information.
UTM to Longitude and Latitude Converter
If you live in the US, you might have come across the Universal Transverse Mercator (UTM) system used in locating
positions on USGS maps. This tool will allow you to convert the UTM coordinates to Longitude and Latitude coordinates.