This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
I can not understand your question , portlet and portlets ? these are the same but one is singular name and the other is not. but : a portlet is an specefic web component that can be deployed into a portal (portlet container) .
portlets can be standard (compatible with jsr-168) and then they could be deployed into any portal (portlet container).