DMOZ is the largest open source, human edited directory project in the world.
This site was submitted (along with Feldgrau and others) as part of my application to be an editor in the World War II Chats and Forums Section (which had no editor at the time).
Hopefully this drives some new registrations here as that directory is used as a source by some search engines.
Feel free to see the listing at
Open Directory - Society: History: By Time Period: Twentieth Century: Wars and Conflicts: World War II: Chats and Forums and to suggest other sites that might belong in that category or others.