Google API add-on lets you make heat maps inside a Google Map portal!
HeatMapAPI can be used over the Internet or as a .NET DLL that runs in a local environment and allows you to integrate heat map images into Google Maps or other GIS systems. In this post we’re going to use HeatMapAPI to visualize the density of recent Starbucks store closures. In a recent statement, Starbucks announced the closure of 600+ stores in the United States due to economic conditions.
In other news, we’d like to thank Starbucks for providing their easily-parsed list of closures. Most visualizations I’ve seen are using this dataset.
via Density Mapping in Google Maps with HeatMapAPI « GeoChalkboard.
A map of the USA showing where bars outnumber grocery stores.
FloatingSheep, a fun geography blog, looks at the beer belly of America. One maps shows total number of bars, but the interesting map is the one above. Red dots represent locations where there are more bars than grocery stores, based on results from the Google Maps API. The Midwest takes their drinking seriously.
via Where Bars Trump Grocery Stores | FlowingData.
From Slate: News Dots. This little Flash-driven app renders the day’s events as a social network.
Like Kevin Bacon’s co-stars, topics in the news are all connected by degrees of separation. To examine how every story fits together, News Dots visualizes the most recent topics in the news as a giant social network. Subjects—represented by the circles below—are connected to one another if they appear together in at least two stories, and the size of the dot is proportional to the total number of times the subject is mentioned.
Introducing News Dots – By Chris Wilson – Slate Magazine.