Last fall, Twitter started including geolocation information in its API, but it was not available through Twitter.com. That appears to be in the process of changing now. This week, Twitter has been rolling out (it appears to still be in the process) geolocation info on tweets at Twitter.com. Various reports from users have been circulating, with those who have access to the feature pointing to a little blue icon by the tweet source on individual tweets, which when clicked,