title: How to build a web application like TwitterCounter?
body: <p>I want to build a application like TwitterCount. Do anyone know any open source application like it? I want to find a open source application which can show some diagram or graph on website. Moreover, I want to build a web application, in which I can copy URL to my application, and it will show some diagrams. Now, my main difficulty about it is how to build a website like this, so I want to get some open source code for reference. If it is implement by java, that is better. Please give me some suggestions. </p>