Just a few days back i had blogged about BEA Survey result as how Portal market is going to get a boost by SOA. Here is another whitepaper sponsered by Oracle this time. It explains as how SOA and Portal gel together. It gives an overview of SOA and its benefits and how it can readily be used with Portal. It quotes a Gartner Paper "A Portal May Be Your First Step to Leverage SOA," September 22, 2005 and supports its finding.
One can have a look on this paper at Portals: The Face of