Create Your Own Planetarium
The problem with living in a major city is that light pollution ruins your appreciation of the stars. That's why urban stag-gazing has been invented.
Mapping a Day in Twitter
Chris McDowall has used Matplotlib with the Basemap extension to animate 25 hours of Tweets on a world map.
Now that Street View blurs faces Google has decided to start adding name tags to people so that you can know who they are. Unfortunately, for those who want to be named, you have to have the name of a nearby store.