TwitterWhere is the latest Twitter mash-up to come out the wildfires in San Diego California, and while it has uses far beyond that, it’s fairly obvious that tracking the fires was at least partially the impetus for the new service.
TwitterWhere does what it sounds like it does — enter a location (by city, state or postal code) and a radius and TwitterWhere will track all the tweets coming from that region. You can then add the resulting RSS feed to your reader for quick access.
There’s also an XML feed that mimic the public timeline on Twitter if you’d like to take the data from TwitterWhere and do something further with it.
It’s not as focused as using the tracking feature we mentioned the other day, but it doesn’t require other users to specify a topic either. As you would expect, only public Tweets with valid geo location data are included in the feed.
TwitterWhere is the brain child of developer Matt King and lives on his server, but so far it seem to be holding up to the traffic. There appears to be an alternate domain setup here, with support for OpenID logins, but I wasn’t able to get it working.