More evidence that Foursquare will be transformative: a new layer on your history: who, not just where http://instapaper.com/zl03knss
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
More evidence that Foursquare will be transformative: a new layer on your history: who, not just where http://instapaper.com/zl03knss