In a message dated 5/16/2005 1:26:35 AM US Mountain Standard Time, 
kevin_brown@qwest.net writes:
> 3) The WWG will move current content off of PostNuke, if possible to
> another FOSS content management solution.
>
> 4) The WWG will migrate content to Wiki services when appropriate to
> do so.

I'm not sure either of these changes need to happen.
I see both of these as MASSIVE overkill.

Realistically, does the site have enough content to manage?

I can see stripping the site to a very simple form:  A listing of upcoming 
meetings and their topics, and a few links to the mailing list pages.