What is the best method for determining a users location?

I read a few other posts on SO that came close to what I was looking for, but I'm basically looking for a service to provide accurate GeoLocation services that will get you close to a location.

We used one IP based service that plotted us 4 hours away. That's no开发者_运维技巧 good. What is the most accurate service outside of the HTML5 GeoLocation API?

You will find both free & paid services for this: http://blog.programmableweb.com/2009/03/31/3-free-ways-to-geolocate-by-ip/

MaxMind is the better known series that works well at the City level.

Funny you should ask. There was a /. article on this subject just a few days ago. Here is an article by Bruce Schneier on it. Very interesting (and disturbing) stuff.

HTML 5, it gives you coordinates Latitude and longitude that you can send to a google map an get the map location.

http://html5demos.com/geo

but works only in newest browsers..