Asynchronous Javascript and XML (AJAX) is a technology which provides users with a better user interface than the standard GET/POST sequence of viewing pages on the web. Using Ajax, a small portion(s) of the screen can be updated while the remainder of the page remains static in the browser. Browsers have been Ajax-capable for some time, but it is only in the last two years that developers have become attuned to this technology. In this session, you will learn all about Ajax and then, how it is implemented in ASP.NET. Using the Ajax Extensions for .NET and the Ajax Control Toolkit, developers can create useful and just plain cool user interface features with a minimal amount of effort.