What services can I used to find a user's location based on their IP address?

Question

If you need to locate a user based on their IP address, what services are available (free and not free services are fine)?

P.S. I understand that some users use prox

Answer 1

For a paid product, you could look at CountryHawk from cyScape.

I can't vouch for this product personally, but we use their BrowserHawk product for browser and connection speed detection (eg to optimise video streaming) and haven't had any problems with it.