future versions of Firefox plan on supporting the new W3C Geolocation Specification, which adds the native ability for Web sites to request, and you to optionally grant access to, your location.
"Whrrl leverages your social network and mobile location awareness to enable personalized discovery for the real world. Whrrl shows you not just where your friends are right now and what they're doing, but where they have been. In effect, your friends (in combination with a powerful recommendation engine) light up your map with their experiences so you can discover cool places, events and even new people that you might otherwise have missed. You can use Whrrl on a Web browser, via SMS, or as an application on your mobile phone."
The goal of the GPSTk project is to provide a open source library and suite of applications to the satellite navigation community--to free researchers to focus on research, not lower level coding.
GeoTracing is a software platform for creating multimedial geo-applications. These applications have in common that they allow you to tell your multimedial story about your movement through the landscape, whether on foot, skates, by bike or other means.