portlet

A small window on a portal page. Portlet technology allows a portal page to be customized more quickly either internally by the development team or by the end user. Portlet technology can come as an adjunct to a portal server or as optional interfaces to ERP applications. The degree of customization also varies. See portal.

BEA's Portlet Technology

These examples from the BEA Weblogic Portal show how typical portlet windows are entry points to a variety of services. (Screen shot courtesy of BEA Systems, Inc.)