The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- About us pages (1 member)
- Blog posts (0 members)
- Browse (7 members)
- Candidates for deletion (0 members)
- Disambiguations (0 members)
- Guinea Pig Breeds (17 members)
- Guinea Pig Colors (4 members)
- Guinea pig illnesses (2 members)
- Guinea pig origin (1 member)
- Help (0 members)
- Home page (1 member)
- Images (1 member)
- Important information (5 members)
- Infobox templates (1 member)
- Lists (3 members)
- Longhaired Guinea Pig Breeds (3 members)
- Los angeles guinea pig rescue (2 members)
- Pages with broken file links (1 member)
- Shorthaired Guinea Pig Breeds (2 members)
- Template documentation (26 members)
- Templates (24 members)
- User-made Power points (6 members)
- User posts/pages (7 members)
- User powerpoints (1 member)
- Videos (70 members)