This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
And how about deployment descriptors? Did Struts 2 enhanced the way to tie the input form (if it exists), Action classes, validation framework by, for example, using annotations instead of struts-config.xml?