Using a wiki to communicate information

A wiki can be an excellent tool for communicating information to other people.  the power of wiki sites comes from the fact that they can be edited by many different people to create a collaborative effort.  this way, information can be quickly put up by many different sources.  wikipedia is a great example of how a wiki can be used to spread a vast wealth of information.  with wikipedia, anyone can post information about anything, and it is constantly adding and updating the information so that it stays accurate and up to date.  with stuff like books the information could be outdated quickly, but with a wiki, people can quickly edit and update the existing info.