This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
Statement is incorrect. Portlets are not just small web applicaitons. They can be typical sophisticated and/or robust application. Idea of putting such applications into portlets to have a complete control or usages of all such application through a single portal. Ofcourse we can also implement Oracle's SSO(Single Sign On) to have a single crendential authentication across all the portlets on a portal.