DWR makes interportlet messaging with Ajax easy

You can use the sample code in this article as a starting point for developing your own applications; the code also shows how DWR extends the Java programming model to Web browsers. With DWR, it's almost as if JavaBeans were available in the browser. DWR simplifies your work by hiding almost all the details of Ajax and allows you to concentrate on the task at hand instead of the nuts and bolts of Ajax development.

Full Story