H-geo

Geo is a draft standard intended to be one of several "microformats" released via the microformats.org site and community, intended for the representation of information in a manner that is human-readable but can still be processed by machines.

The format encodes a position on Earth (latitude and longitude) in the form of a standardized set of elements and attributes in HTML or XML. Thus, it can be embedded in web pages and be readable this way (and styled via CSS), but has a standardized structure that can easily be converted mechanically to other formats as needed for machine processing.

Links

 * Geo draft spec
 * Examples in the wild