Wikipedia:WikiProject Portals/Portals tree

This essay organizes the portals in a Tree structure, in order to help the maintain the portal space. Especially in maintaining of the related portals section, ensuring that views flow from the main page to the narrowest topic portals.

Hierarchy:
 * Main page is the top parent portal.
 * Portals linked in the main page are the bottom stem.
 * Only existing portals. No red links.