If you're looking for some excellent After Effects tutorials, whether you are a beginner or an advanced user, take a look at Video Copilot. A few years ago I came across this quick tutorial on how to create 3D titles that appear to live inside your frame, along with your footage. This method will give a unique look to your titles and definitely sets them apart from most titles that lay flat across the frame.
Have any other After Effects tutorials to share? Leave them in the Comments section.