Ajax in Action
The ServerSide (TSS) has a couple of posts on using AJAX.
For those of us new to AJAX - the first post links to a great step-by-step AJAX example. In the example, link descriptions are loaded via AJAX on mouse over.
The example itself may not be a good idea from a web design or search engine optimization perspective. Regardless, it is a great starting point for beginners to build a working model.
For more advanced AJAX programmers, TSS has another post linking to a whitepaper from BackBase. [pdf] Mostly promotional material that I think may provide inspiration.
