The 30 days limit is only true for the "My Photo Stream" album, Larry, - all mentions of this period in Apple documents only refer to "My Photo Stream", not to "Shared Photo Streams" and Journals. My web journals and Shared Streams still hold all photos I put there in early September. It would not make much sense to offer tools to layout elaborate web journals with all kinds of widgets, or to create shared photo streams with comments by the the invitees and to publish these streams on the web, when all photos will be gone after 30 days.
see: iCloud: Photo Stream FAQ
How long are My Photo Stream photos stored in iCloud?
The photos you upload to My Photo Stream are stored in iCloud for 30 days to give your devices plenty of time to connect and download them
But the shared photo stream documentation does not mention any limited period of storage at all:
iCloud: Using and troubleshooting Shared Photo Streams
The same holds for Journals published on the web: iPhoto for iOS (iPad): Create a journal
With "Shared Photo Streams" and "Journals" published on the web has Apple done a step back towards cloud based web publishing, but without openly advertizing this fact.