Great overview of Fitts’ Law

Fitts’ Law is one of my favorite UI concepts (even though it is often overlooked), so it was cool to see Particletree’s recent visual description of the law. One small item they didn’t mention was the answer to question 3 in Tog’s quiz, which surprised me a bit, since AJAX-y interfaces like Wufoo‘s make it easy to keep buttons close to the mouse pointer.