Here's a list of member Group worlds. Aka Club worlds. Worlds with at least 3 guest posters with a common theme. If you want your world to join the list, please send me a pm :)
Artist's Cubby: "A place for artists to share their methods, experiences, tips/advice, ect. Its like a club in a community where artist friends can join even closer together."
Captivating Captions: A world where captions battles are hosted by RinMustang22. She posts a screenshot of an anime and you have to come up with a funny phrase. The Host will pick two winners.
Collaboration Nation: In the spirit of collaboration, let's get together and create a dialog between our creative practices. A world for artists to share line arts arts which may be used for coloring.
Konoha: A Naruto's RP World where you can either join as an existing Naruto character or your own character. Rise among the ninja ranks by passing exams, completing missions and gaining points.
New Akatsuki Hideout: A Naruto RP. Crawl into the skin of an Akatsuki member or join as a new recruit. Earn points by posting, making fan art and entering contests to rise in rankings.
Photoshoppers Unite: "A world created specifically for Photoshop users and it is available to the aspiring graphic designers of theOtaku." For beginners and advanced users.
The Otaku Host Club: The adventurous journey to search for Love begins with a smile, a host, and the encouragement of friends. Now the question stands, my fair lady, How may we host you?