This is one of the best tools out that that not many web developers know about. The Google Charts API is a great way to visualize data on the fly. While it doesn’t have too many complex features, it has most of the features most of us would ever need. For example, the Pie Chart below is being dynamically generated with the following URL:
http://chart.apis.google.com/chart?cht=p3&chd=t:90,49&chs=400×150&chl=Ideative%20Flux|Dumb%20Fluxes
The following types of charts are available:
I’ve already put it on one test, it powers the stats visualization for player performances on my Indian Premier League application for Facebook.