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.
You use jsp:param with jsp:include and jsp:forward to add extra parameters to the servlet request. Those extra parameters are only available in the included / forwarded servlet / JSP page; after the jsp:include / jsp:forward end tag the parameters are no longer there.