All the UI gurus say that a good user interface should make the user feel in control. This firefox extension, Mouse Gestures, makes me feel mighty! Swish! You go back. Swosh! You go forward. Slash! That stupid image is gone.
Once you get the hang of it, you can draw a big ‘S’ to view source or an ‘M’ to see the meta-data but don’t try to learn them all at once.
Start simple. Swish, swosh and slash. Be mighty too!