Update: In Time For SXSW, Twitter Officially Turns On Geolocation

A few days ago, we spotted Twitter’s initial roll out of a geolocation feature on its Website. It appeared that Twitter was testing the feature because it quickly turned it off. Last night, the feature went back on, and Twitter co-founder and CEO Biz Stone officially announced it.
While Twitter’s geolocation feature has been live through its API since last November, this is the first time Twitter has enabled geolocation on its site. To start Tweeting with your location attached, you need to enable the feature in your Twitter Account Settings. Once you’ve opted-in, you will be able to add your location information to all your Tweets or choose to add them to individual Tweets as you compose them. You can choose to share your exact location (your coordinates) or your neighborhood or town. 
Check also related entries: