what are difference between server-side ajax framework and client-side ajax framework?
Who is using ajax?
What is AJAX Control Extender Toolkit?
What are the different controls of asp.net ajax? : asp.net ajax
Describe ajax control extender toolkit? : asp.net ajax
What are the tools for debugging ajax applications?
What javascript libraries and frameworks are available for ajax support?
Is AJAX code cross browser compatible?
Explain the updatepanel control? : asp.net ajax
How to handle multiple or concurrent requests in ajax?
Some of the google examples you cite don't use xml at all. Do I have to use xml and/or xslt in an ajax application?
What is the syntax to create ajax objects? : asp.net ajax
Is the server or the client in control?