The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Tracking (3 members)
- Tutorial (1 member)
- Tutorium (2 members)
- Typo (4 members)
- Typografie hinzugefügt (1 member)
- Ubiquitous Computing (3 members)
- Unconventional Interfaces (1 member)
- Urbanism (5 members)
- Ursula Damm (47 members)
- VPN (2 members)
- Vaclav Harsha (1 member)
- Vector Field (1 member)
- Video (4 members)
- Virtual reality (9 members)
- Visualization (1 member)
- Vorkurs (19 members)
- Vvvv (3 members)
- WS07 (3 members)
- WS08 (10 members)
- WS09 (37 members)