The gridsphere attribute information is available from the following:
http://www.gridsphere.org/gridsphere/docs/FAQ/FAQ.html question #5
The uPortal attribute information is available from
Note that with uPortal you need to configure it to export user information to
portlets, so the user attribute names used is somewhat arbitrary but here I
am trying to stick to the suggestions in the JSR 168 Portlet Standard (PLT.D).