Learning patterns/Creating portals
What problem does this solve?
The categories and lists are certainly the most common way that readers and editors navigate through a topic area on Wikipedia. They both provide a systematic way of claassifying related articles but at the same time seem to be insufficient in visually organising the entire amount of content on a topic in one place and in a readable way. For example, a central category or a central list of a topic might well summarise the content using tree organisation, but the visual output of these pages will consist of other categories, lists or links to articles that do not attract attention.
Portals are pages that can solve the aforementioned problem. The underlying idea of creating portals to summarise content stems from Wikipedia's main page. As the main page provides access to the encyclopedia, portals provide access to specific topic areas. Herefrom, it can be conveniently said that portals are "main pages" of the topic areas they cover. The portals should not be seen as a substitute of categories and lists but rather as complementary pages that aim at integrating the former two on a higher level. Their main value added arises from the additional features that they offer, such like featuring high quality content, presenting interesting facts from articles, listing necessary pages for creation or improvement, informing about projects aimed at contributing to the topic and linking to other related portals and external pages.