Twitter Cashtag Heatmap
A demonstration of using Node.js with Twitter's streaming capability to create a live heatmap via Socket.io!
Running this application locally requires that you input four twitter API keys. I cannot provide you with these keys since only one streaming connection can be made for each. However, you can go to https://apps.twitter.com/, create a new application, and use the API keys from that in this application. Don't worry, it's free ;)
Once you have the API keys you'll just need to insert them into the app.js file. The placeholders should be easy to find as they're at the top of the file with a big IMPORTANT stamp on them.