If you're a Member of the Collective, log in and create pages ('Documents' in schtuffspeak), then link them (square brackets) in an existing Document, or edit an existing Document.
If you're not a Member but it looks like it would be interesting to participate, email blackmerh@wlu.edu and he'll ask Schtuff to issue an Invitation.
It's probably a good first step to add the Space's RSS feed (?action=rss ) to your aggregator, so you'll be notified any time a Document is changed or added.