The way you present the data to the public, will determine the success on the user understanding or not. Therefore is it important to define it, by developing and testing several ways to present the same data. Creating charts can be also a concept of art, and be used to increase the good look of an application. In this article i point you two good frameworks that can be used for presenting data, as also a showcase of several inspirational applications which you can bear in mind before developing your own.
Data Visualization Collections
AS3 Data Visualization Frameworks / API’s