I'm the Marketing and P.R. guy for a Barbershop Chorus in Worcester, Massachusetts, USA and I thought what better way to build an on line-presence than Xoops!
This site is somewhat unique in that there are intended to be three levels of access: Visitors can see information about the chorus without registering. Visitors also get the thumbnails from the Xoopsgallery as a teaser to register. If they register I get the chance to put them on my mailing list. Logged in users get the full Gallery plus full access to the piCal calendar.
Beyond that the News, Forums and Downloads sections are restricted to a group that includes only the guys who are members of the chorus.
See the "credits" link at the bottom of the page for more information on what modules I used.