This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
I'd suggest that you start by taking a JSP tutorial just to get familiar with the technology. There are several good ones out there that you can find by using your favorite search engine. Once you've learned the basics and have specific questions, feel free to ask.