Microsoft added new tutorials to the Developer Tools content section on MSDN. These tutorials are written to help you quickly learn how to use the Developer Tools to solve Web page issues. Each tutorial is set up to focus on a programming problem to solve, such as changing text on the page, update a CSS class, or inspect a Jscript variable. You can follow the step-by-step instructions provided to learn how to use the Developer Tools to solve these and similar problems. The tutorial topics based on your Web site’s problem sets that you can resolve using the Developer Tools.

More info: Developer Tools tutorials