I've created the MiniCPAN aging data set and created a "Perl" topic hub. I don't think I need to do any more for you to play with the data. If you have your own data about Perl things, add it to the topic hub.
To make the pretty pictures, you need some Java applet fu in your browser. That doesn't work for me right now and I'm not going to worry about it at the moment. There is a feature to "share" a visualization by embedding some special HTML if you find a picture that you like.