The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Americans (6 members)
- Billy Soto's Love Interests (1 member)
- Blog posts (0 members)
- Browse (8 members)
- Candidates for deletion (0 members)
- Diamond Family (4 members)
- Disambiguations (0 members)
- Episodes (38 members)
- Females (4 members)
- Forums (6 members)
- Help (3 members)
- Help desk (2 members)
- Images (0 members)
- Laura Diamond's Love Interests (3 members)
- Main Characters (6 members)
- Males (8 members)
- Meredith Bose's Love Interests (1 member)
- Minor Characters (1 member)
- NYPD (6 members)
- Recurring Characters (6 members)
- Season One (22 members)
- Season Two (16 members)
- Seasons (1 member)
- Template documentation (28 members)
- Templates (28 members)
- Watercooler (2 members)