DevX has an article on using WebSphere Application Server Community Edition (WAS CE) and AJAX together for rich, scalable web applications.
IBM developerWorks also had a previous article on using WAS CE and AJAX. You need an IBM ID (which is free) to view this aritcle. Yeah, I know it sucks to be forced to register to view content. But, getting an IBM ID isn’t a big deal, and it’s good to have to view any ‘protected’ articles at developerWorks. If you’re having trouble getting to the PDF, send me an email or post a comment and I’ll email it to you.