Wikipedia:Tip of the day/October 13, 2008

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Why have lists when there are categories?

Lists on Wikipedia have three main purposes:

Information
Lists are a valuable presentation format, especially the structured list. Examples include lists organized chronologically, grouped by theme, glossarized, or annotated.
Navigation
If a user is browsing without a specific research goal in mind, he would likely use the See also lists embedded in articles. If the user has some general idea of what he is looking for but does not know the specific terminology, the lists of related topics would be most useful.
Development
The lists of related topics give an indication of the state of the 'pedia, the articles that have been written, and the articles that have yet to be written (shown by redlinks).

Like categories, lists are great for keeping track of changes to subject areas, using the Related Changes feature. Unlike categories, lists are centralized, providing direct control over the contents. Lists also allow detection of deletion of pages from them. Another advantage of a list is that changes can be tracked in the page's history, while changes to categories cannot.

Read more: Wikipedia:Lists (stand-alone lists)

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