Scott Guthrie points out that Microsoft is offerring a free online course where you can learn all about ASP.Net AJAX. Click te link below to check it out. You'll need to have a Live ID to sign in though.
Developing Enhanced Web Experiences with Microsoft ASP.NET AJAX Extensions
Here is the discription of the course (taken from the Microsft eLearning web site):
In this 2-hour clinic you will learn about the rich functionality that ASP.NET AJAX Extensions provides for building highly responsive and enhanced web applications. In addition to learning about the different server and client components of ASP.NET AJAX, you will also learn how to build new ASP.NET AJAX applications and how to upgrade existing ASP.NET applications to take advantage of ASP.NET AJAX.
This clinic is appropriate for experienced .NET Web Developers and Software Architects who are looking to incorporate ASP.NET AJAX within their existing and future solutions.
