Ajax commonly is thought of as single language, but in truth AJAX is a combination of more than one technology. It uses HTML and CSS. By using AJAX we can create real-time feedback to our users using server-side validation scripts. Its becoming commonplace in many design niches as its very flexible, easy on the eye and can really improve user experience due to its fast response times. I have gathered a list of great Ajax tutorials from across the web which will allow you to experiment and get you started with Ajax, the tutorials are superb and answer most questions you may have.