The vital portals system follows the vital articles system and is based loosely on powers of ten. At level 2, there are about 100.
History (9 portals)
Geography (11 portals)
Arts (7 portals)
Philosophy and religion (6 portals)
Everyday life (8 portals)
Society and social sciences (19 portals)
- Portal:Culture
- Portal:Languages
- Portal:Agriculture
- Portal:Business
- Portal:Communication
- Portal:Community
- Portal:Construction
- Portal:Education
- Portal:Emotions
- Portal:Government
- Portal:Industry
- Portal:Law
- Portal:Mind
- Portal:Politics
- Portal:Psychology
- Portal:Society
- Portal:Trade
- Portal:Wars
- Portal:Writing
Science and medicine (27 portals)
- Portal:Earth
- Portal:Humans
- Portal:Life
- Portal:Science
- Portal:Anatomy
- Portal:Animals
- Portal:Astronomy
- Portal:Atoms
- Portal:Biology
- Portal:Cells (biology)
- Portal:Chemical elements
- Portal:Chemistry
- Portal:Climate
- Portal:Death
- Portal:Diseases
- Portal:Ecology
- Portal:Energy
- Portal:Evolution
- Portal:Geology
- Portal:Medicine
- Portal:Nature
- Portal:Physics
- Portal:Plants
- Portal:Solar System
- Portal:Sun
- Portal:Time
- Portal:Universe
- Portal:Water