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.
They're kind of different things, too: tags are generally intended to encapsulate behavior, can do things to their bodies, etc. Includes are primarily focused on presentation only, don't "do" anything, and so on.