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The Wiki should not be used to store passwords or other highly sensitive information such as grades or private contact information.  Meeting minutes, or other documentation appropriate only for faculty or staff, or employees within a department or office can be stored in the wiki, although you need to ensure that appropriate sharing.

What Role Does the Wiki Play, versus Other Web Content Management Systems?

The wiki is for instructions and documentation served as pages organized into tree hierarchy.  It's chief benefit is easy of use: it's simple to learn how to get information onto the internet, and update it there when required. 

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