Techniques for asynchronous server communication have been around for years. What makes ajax a "new" approach?
What is use of Update Panel control in Ajax toolkit?
What is json? : asp.net ajax
What exactly is the w3c dom?
When do I use a synchronous versus asynchronous request?
What is the disadvantage of ajax?
Is the server or the client in control?
Is ajax an api?
Should I use xml or text, javascript, or html as a return type?
Can I use ajax with seam?
Will html_ajax integrate with other javascript ajax libraries such as scriptaculous?
Explain the step property of the numericupdownextender control? : asp.net ajax
Can we nest the updatepanel controls? : asp.net ajax