They have creaked open the door a bit for some additional Group Kinjas and I have taken advantage of their generosity to create the following: BookClub, TVClub, MovieClub, MusicClub, ArtClub and Travel. If anyone is interested in posting, you're invited to sign-up.
ETA: Hosted by @Cheerful_ExGirlfriend, CraftClub is also now online.
Author registration posts are tagged /join on the respective blogs.
Note: I am not an employee of Gawker Media and these communities are user-generated space.