FME Server is used to transform Twitter data and stream it to Google Maps and Earth via KML. The tweets are stored in a database and time stamped to allow for future analysis and replaying the event. Every 30 seconds new tweets are archived and every 10 seconds Google Earth requests updated tweets from the database, while the Google Maps view requires page refreshes to see new tweets.

1. FME –Twitter Demo#nsgicmidyear Learon Dalby NSGIC 2010 Midyear March 7-10, 2010

5. The KML Network Link in Google Earth is set to request the tweets from the database every 10 seconds.

7. Contact Info Twitter: @LearonDalby Email: Learon.dalby@gmail.com Slideshare: http://www.slideshare.net/learondalby