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This isn't a necessity as the community is still small, but I think it would be nice to have a tabbed section at the top that links to a sort of Wiki/Resources page. I think this could be especially helpful for tribes dedicated to a certain craft or trade. Even specialty interest tribes too.
I totally agree. Even if it's not a full-fledged "wiki" system, having a simple html tribe page that chiefs or chiefs+mods (with chiefs' permissions) can edit would be really great.
Also more custom modules than just the rules on the sidebar...