Andy Trice recently forwarded me this link: http://selection.datavisualization.ch/#, a great site which showcases the current state of many visualization toolkits & frameworks. Upon investigation though, it looks like this is a mix of JavaScript & ActionScript libraries, applications for creation of data visualizations and generic helper tools. Navigating through the list seemed a tricky for the average developer. As well, there was a bunch of libraries I knew about that I didn’t see listed. It seemed to me like it would be useful to recreate this list based not on whether I’m trying to create a map or chart for example, but rather based on development restrictions. If you’re building an HTML/JS application, ActionScript libraries are not very helpful. Likewise, if you’re building a Flash application, a JavaScript toolkit may or may not be helpful.
The list will obviously change as new libaries are developed and old ones go by the wayside. I’m sure I’ve missed off a few as well and so I apologize in advance. Let me know and I’ll update as I can. I will try to keep this up to date, but you know how these things go…