Watch in real time as the last one million geotagged tweets are shown on a one million tweet map. You can view in a cluster with the number of tweets showing or change it over to a heatmap.
In the cluster a blue circle is shown and when a red dot appears inside it a new tweet was found. The most recent 20 tweets are always being added and then 20 removed.
You can also filter by hashtag or keywords to see a finer view of how the world is talking about a topic. This would be great to see how something spread during a huge news event or crisis.
Time filtering for the last 5 minutes up to the last 12 hours is also maintained. I cannot imagine the amount of data they are parsing to apply to this map, but the folks at Maptimize did a cool thing here.