From the UMapper blog:
After two weeks of intensive testing, the Twitter Search template is ready for release! It is now easier than ever to create interactive maps with real-time Twitter feeds. You can display all tweets from a location or filter results by a specific keyword.
A search for “Olympics” in Vancouver is embedded in the map below. Drag the map to a new location and a new set of tweets is downloaded.
As with everything UMapper does, the attention to design and detail is apparent here. Each Twitter avatar is displayed within a circular marker and the search radius is also visualized.
If you create your own, you can choose between several imagery options, set the initial search center and optionally start with a specific keyword search.