In order to prevent spamming, only websites having more than a given number of hits are shown in the application. Don't panic! The threshold isn't that high.

No, this would be too costly, everything is precalculated and updated every 60 seconds.

We plan to make the data freely available on HappyFlu.com. When we end the experiment, we will analyze the data and then release it to see what others can do with it.

You can scroll to zoom, and click&drag to move around.

Each node represents a blog/website whose author chose to spread Happy Flu, the background circle's size depends on the number of hits (number of times the applet was displayed on a given website). An edge is a path along which the applet travels from page to page and its length represents the time it took for one page to contaminate its neighbor.