This seminar provides an overview of several in-depth concepts that developers need to learn to bring their jQuery development to the next level. They review six things that you should know, such as: "What Is This?", "Am I Referencing the jQuery Object or a DOM Element?", "Understanding Selectors", "Combine and Minify Your Scripts", "Different Ways of Storing Data", and "The Dos and Don'ts of Events". Along the way, they share several helpful websites and tools to make your job as a jQuery developer easier.
To view a video about jQuery and some debugging tips check out this video from MIX2010:
http://live.visitmix.com/MIX10/Sessions/EX22