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.
In my opinion, the most important aid to learning servlets and jsp is having your own local Tomcat server to experiment with. Tomcat comes with servlet and jsp examples - easy to modify and experiment with.