OWASP ~ The Open Web Application Security Project
I'm working on editing my Security Chapter (yet again) and I went to verify that a URL to http://www.owasp.org was still valid. There I found that they've developed an portal (based on Struts) with security as a REQUIREMENT, not an option.
Several modules from the OWASP Common Library (OCL) are utilized as well ( OCL can be found in our CVS repository under the module name OCL ). Content is stored in XML format and translated with XSL.
Aside from the obvious need of a site for our own needs, the portal team has approached the design from the perspective that the OWASP portal should be more than a single use web application, but rather a reference implementation of a secure portal, that will rival the likes of any commercially available portal. We are striving to make the portal as extensible as possible, but yet deliver commonly needed feature sets. [http://beta.owasp.org]
Here's the best part: The portal that runs OWASP is open source and available for use in your own sites. Check out the release plan to see the planned and upcoming features for the next releases. It says it has RSS feeds, but I can't seem to find them.