The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- About (1 member)
- Anime (4 members)
- Article management templates (4 members)
- Article stubs (5 members)
- BlogListingPage (0 members)
- Blog posts (0 members)
- Books (3 members)
- Browse (4 members)
- Candidates for deletion (2 members)
- Candidates for speedy deletion (0 members)
- Category templates (3 members)
- Chapters (3 members)
- Characters (19 members)
- Community (6 members)
- Content (1 member)
- Copyright (0 members)
- Disambiguations (0 members)
- Episodes (3 members)
- Females (9 members)
- Files (2 members)
- Forums (6 members)
- Games (1 member)
- General wiki templates (33 members)
- Genshiken Episodes (3 members)
- Help (5 members)
- Help desk (2 members)
- Hidden categories (2 members)
- Image wiki templates (9 members)
- Images (4 members)
- Infobox templates (8 members)
- Males (9 members)
- Manga (14 members)
- New pages (0 members)
- Organisation (0 members)
- Organization (9 members)
- Pages proposed for deletion (0 members)
- Pages with broken file links (3 members)
- Policy (2 members)
- Series (1 member)
- Site administration (4 members)
- Site maintenance (5 members)
- Template documentation (62 members)
- Templates (13 members)
- Videos (1 member)
- Volumes (7 members)
- Watercooler (2 members)