Learning ActionScript 3.0

There are several useful resources available from Adobe as you learn ActionScript 3.0. The ActionScript 2.0 Migration guide is particularly helpful for learning the equivalent commands in ActionScript 3.0. The Adobe Development Center also has articles on an ActionScript 3.0 Overview as well as a Tips & Tricks article.

Furthermore, the step-by-step instructions and examples presented in the ActionScript 3.0 Essentials Training video on Lynda.com (subscription required) were instrumental in my coming up to speed with ActionScript 3.0.