Essentially, wikis are web pages that allow users to edit page content collaboratively. The changes are viewable by all visitors to the site. The editing tools are simple–usually resembling tools available in a standard word processor–and require no knowledge of HTML authoring to use. An excellent example of the collaborative power of a wiki can be found in WikiTravel<\/a>, a free world-wide travel guide capable of being edited and updated by people who have actually experienced travel in various locations. For example, I have edited and added several elements to the section on Florence, Italy, based on my travel there last summer. The result is an up-to-date guide with information contributed by people who have actually been there.<\/p>\n Wikis are excellent tools for educators as well. They provide an easy method to capture content of class discussions from a variety of perspectives and to preserve it for future classes or to post and edit a collaborative document.<\/p>\n