User blog comment:Sarah Manley/Wikia's 1st Hack-a-thon/@comment-876022-20110323233844/@comment-1613840-20110329164947

There are few wikis we have for privacy and testing purposes that are closed to the public because they contain private information. We like to use wikis for all aspects of our work here -- but in order to do so, we need to keep some of this information private.