Reuters Releases OpenCalais; Offers Developers $5000 Bounty ( http://mashable.com/2008/01/30/calais/ )
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Reuters Releases OpenCalais; Offers Developers $5000 Bounty ( http://mashable.com/2008/01/30/calais/ )