WordPress 3.0 templates have gotten a few changes. The Digging Into WordPress book has a handy resource for keeping track of which template file WordPress will use.
Check out the full-size template cheat sheet and read more info about how to use it at digwp.com.
Why 100 is NOT a Perfect Google PageSpeed Score (*5 Min Watch)
Learn how to use Google PageSpeed Insights to set realistic goals, improve site speed, and why aiming for a perfect 100 is the WRONG goal.