Sang Shin is starting a FREE 10-week "AJAX Programming" online course from August 4th, 2006. This course is for anyone who wants to learn AJAX for the first time or increase their knowledge on AJAX. In this 10-week course, students learn basic concept of AJAX as well as how to use various AJAX frameworks and toolkits such as Dojo toolkit, jMaki, Google Web Toolkit, and AJAX-fied JavaServer Faces (JSF) components.
More details are available here.
The only thing you have to do in order to register for the course is sending an blank email to email@example.com.