We have been able to follow random tweets by geographic location on a map via Twittervision and Twittermap but other than fun, it isn't that useful in our opinion. What if you wanted to follow all tweets from the city of London, UK. Well now you can. TwitterWhere lets you input a location and a radius (1 mile away, 5 miles away etc). Once you do this, submit your selection and TwitterWhere will create an RSS feed and an XML feed that you can follow in your feed reader.

While we don't have an immediate use for this, many of you will find it handy for sure.

They also have a Adobe Apollo desktop application available too.

Here is a screenshot from their website.

TwitterWhere lets you generate an RSS or XML Feed to filter out Tweets around a certain area. Just enter a city, state, postal code, choose the range of miles you want to include, and hit the button. You'll instantly get URLs to add to your RSS reader.

Note that the only Tweets that show up in our feed are from profiles available in the public timeline and that have a valid geographical location.

TwitterFaces is a hypnotic glimpse into the lives of people around the world. It's a complete waste of time, in the same way that conversation, casual s*x, and reading are wastes of time. It generates an amazing feeling of connection to what people are thinking of in the world .
This is a kind of ambient zeitgeist for the world and word of it is spreading like wildfire.

Twitter and Microsoft Virtual Earth mashup. See tweets mapped on top of a map of the earth.

See Tweets on a 3D globe of earth from space. Very cool!

If you thought the original Twittervision was cool, you need to check out Twittervision 3D . It is by the creator of Twittervision, Dave Troy. You can watch tweets around the world literally now. Whenever there is a tweet, the globe spins to that place and the tweet appears. You can also change the altitude / view.