https://nearbytweets.herokuapp.com/home This is a simple tool to visualize tweets happening in the vicinity of 15 km of your location in real-time.
Build steps: Enter the Oauth keys of Twitter (get them from https://dev.twitter.com/oauth/application-only) in the TwitterReader.java class, build (using maven), deploy (on a suitable web container) and run the url http://localhost:port/twitterVisualizer/home Click on 'Start Visualizer' button to see.
Only those tweets are read whose geocoding information is available and fall within a 15 km bounding box of the user's location.