Dave Rupert provides an excellent breakdown of how to speed up your WordPress-powered site. There's no excuse to not spend the time implementing these changes. Even if you're like me, and have already done a lot of the work, I'm willing to bet there's a step or two that will make your site even better. For me, it's the super-duper-easy cut-and-paste improvements to the htacess file to enable gzip and browser caching.
Syndicated
13 Stripes and 51 Stars
An interactive exploration of the methods that could be used to add an extra star to the American flag.
jQuery Infinite Carousel – Version 2
This carousel plugin is extremely easy to implement and given the great set of options, very flexible
Genesis Theme Framework – Hook Reference
Genesis Theme Download & Tutorials
TotalFinder
A very useful utility to add tabs to the Finder in addition to other tweaks like listing folders above files in the file lists.