Google Buzz could quickly become the most popular location-based service on the Internet. Not only does Buzz integrate itself into Gmail, which will give it a large mainstream user base, but Buzz also puts geolocation front and center on its mobile sites. In addition, the new Buzz layer in the Google Maps mobile interface makes it incredibly easy to find geotagged Buzz messages around you.
Twitter introduced its own geolocation API in August 2009, but very few users and developers actually use it today.
While location-based apps and services like Foursquare and Gowalla (which launched its own API today) have quickly grown in popularity, only 0.23% tweets currently include location data. Unlike Buzz, however, neither Twitter itself nor any of the popular Twitter client really put geolocation at the center of their applications …
