Atul and Marina just published the first part of an
Overview of the Portal Project at Java.Net.
is building a complete enterprise-quality portal.
It is doing so in steps,
releasing components as they are rearchitected for the needs of an Open Source world where
modules are intended to be reused and recombined.
The existing components in the Portal project include:
a Portlet Container,
a WSRP Producer and Consumer,
a JSF Portlet Bridge,
and a Portlet Repository
(and also see the PRP Protocol).