Disclaimer: In progress and very hacky code (but it works :D). Examples and more info below.
The atlas will be a website full of interactive maps. While viewing any interest map, you can click on a country to see which cities are the most interested in that topic. The maps above are actual screenshots.
We have built a Node.js application to map interests by using data from Twitter's API. We have also mapped a few interests, but we would need a lot more database space to continue mapping.