This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
If you are using the first edition of Head First Servlets and JSP, I recommend taking lots of practice exams from lots of different sources. The first edition of the book covered about 90% of the questions I encountered, so taking many test can help bridge the gap. I took the Java Ranch exam, the Marcus Green exams, and the one in my book. It wasn't quite enough to get the score I wanted, but I did pass.