[thelist] U.S. Cities

[Dena Marchant]

Does anyone have suggestions on how to ensure that cities entered
into a database through a web form will be:

1. spelled correctly
2. valid
3. not duplicates

I'm wondering if there is a service that can take a string that is the name of 
a city and tell you whether it is valid?  

These will only be cities in the United States.

Thanks,
Dena