The items listed below are the key things you should look for before joining Wiki Info Websites. Pay close attention to these areas as they determine which sites are the best.
Large Library of Articles
Look for services with large number of articles to read and / or edit. A large number of articles usually means there are a few very active writers or a ton of users who are somewhat active. Either way, you have an active network and a good base of content to read and enough writers to edit your content as needed.