Yahoo’s Fire Eagle was the first step towards letting websites know where you are.. but slowly this is getting mainstream. FireFox 3.5 has this build-in called Location-Based Browsing.

“Firefox gathers information about nearby wireless access points and your computer’s IP address. Then Firefox sends this information to the one and only default geolocation service provider, all information gathering scary ad-monster privacy killer Google Location Services, to get an estimate of your location. That location estimate is then shared with the requesting website.”

Google maps has it already integrated!

Here is a list of browsers supporting location services:

• FireFox 3.5+
• Chrome 2.0+
• Mobile Safari (iPhone 3.0+ firmware)
• BlackBerry Device Software 4.1+
• Nokia Web Runtime Toolkit

Browsers that still must follow .. let me know if you have an update or other browsers (plugins) that enable Location-awareness.

• Internet Explorer
• Opera
• …?

Edit: Check geo-location-javascript on google code. It names some more devices!