Psychology 2.0

Authors have a range of options to choose from when organizing a collection of wiki pages. Used in combination, these give a lot of flexibility.

WikiWord: The most powerful organizing principle is the author's choice of page names. When a search returns a list of pages, their names need to be clear enough to guide a visitor to the right place.
WikiPage: A page with text (and images), where the text can contain for instance WikiWords that automatically becomes a link to another WikiPage.
WikiGroup: PmWiki requires every page to be a member of a group. A group is like a wiki within a wiki; it can have its own presentation look, security controls and navigation aids. With default configuration, WikiWords are only searched inside the current group, and you use either OtherGroup/MyWikiWord or OtherGroup.MyWikiWord to refer to pages in other groups (see Links).
WikiTrails: A collection of pages, either in the same group or across multiple groups, can be designated as a trail. A visitor can move from stop to stop by clicking on next and previous links.
Categories: Individual wiki pages can also be grouped by having tags and links to a common "category" page; we say that any pages that link to a common page are in a "category" defined by that page. PmWiki uses the [[!category]] markup as a shorthand to place a page into a category with other pages containing the same markup.