Bartlett Publishing has put together several lists of books available from many various publishers which are essential reading for anyone interested in the topic. Check them out today!
You can view the articles from the blogs which preceded these at the following URLs:
For anyone curious, the upgrade to Firefox 3 is well worth it. I couldn't believe the speed increase, especially on image and Javascript-heavy sites. They have done some excellent work! In addition, they have added a lot of animations and user-interface touch-ups that just make using it a joy. It's pretty amazing when you can add user-interface touches and still get massive performance improvements.
Bravo Firefox Team!