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The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Archives (1 member)
- Argentina (1 member)
- Articles using the table template incorrectly (6 members)
- Audio (1 member)
- Australia (3 members)
- Austria (1 member)
- Autotranslated templates (2 members)
- Belarus (0 members)
- Belgium (1 member)
- Board (11 members)
- Board:Agenda (5 members)
- Board:Member (1 member)
- Board:Minutes (165 members)
- Brazil (1 member)
- Budgets (2 members)
- Bulgaria (1 member)
- CC-BY (11 members)
- CC-BY-3.0 (40 members)
- CC-BY-SA-3.0 (10 members)
- CC license tags (7 members)