The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- API (22 members)
- AskShellyIT (4 members)
- BFC (70 members)
- DD (4 members)
- HOWTO (25 members)
- HowTo (2 members)
- Ideas (2 members)
- InHouse (26 members)
- KnowledgeBase (18 members)
- Pages with broken file links (5 members)
- TODO (3 members)
- ThirdParty (17 members)