Admin Forum:Making a Private Wiki

I am looking to create a wiki for a small, private audience of about 100 people. Maybe I am just missing it somewhere obvious, but is there a way to make a wiki only accessable to certain members after they are logged in? I essentially want it to be private except for the 100 members. Thanks in advance for any help.
 * Wikia does not offer private wikis.--
 * c:www:Terms of Use excerpt:

 &ldquo;You further agree to: [&hellip;] Not intentionally block, remove, or otherwise obstruct the proper functioning and view of advertisements, and/or user interface and functionality by other users, including but not limited to changing or adding javascript or CSS changes to the Service that would prevent the proper display or function of advertisements and/or user interface and functionality.&rdquo;
 * 09:38, January 23, 2012 (UTC)