From PPI
The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 2015 (1 member)
- ACTA (4 members)
- Action (7 members)
- Agenda (1 member)
- Albania (1 member)
- Appli (3 members)
- 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)