As you probably know, this wiki has very few users and regular contributors. I have a few ideas on how to advertise the wiki, since we are in need of new users. I will add new ideas to the list as they come to me. If you have a suggestion, please say so in the comments.
A Facebook Page
A Facebook page is the obvious first choice, at least I would think it is. With a Facebook page for the wiki, more people would learn about the wiki and be eager to join. This would surely bring new users here. I would be willing to create the page, unless an administrator would rather do so.
YouTube is another possible option. Perhaps one of the users of the wiki could create short video advertisements? And once the wiki becomes more popular, maybe someone talented in computer animation could begin creating video adaptations of stories here to put on YouTube, which would bring forth even more people willing to join the wiki.