If you are working on a Google chart and need some jquery ajax requirement, then this blog is quite useful. I found this very powerful and simple to implement. Find the link at the end of details:
Google Charts with Jquery Ajax
If you are working for analytics project, you need a rich chart system to display big data results. Google is providing us a powerful chart tools that you can implement charts very simple, this tutorial will explain you how to implement Google charts with Jquery ajax JSON data. Try out there are many free interactive charts and data tools, take a quick look at this live demo.