Spreading Knowledge with a wiki

Corporations and teams know they can be far more productive if the information each individual might need is available in a central spot. A wiki is a website that acts like an encyclopedia of information about certain topics and provides the easy ability to host this shared information.
So, like other technologies, a wiki can "be" the central reference point for much of your company or team information. That helps improves efficiency quite a bit, but there is an even more powerful part to a wiki: the ability for anyone to update the information.
Because a wiki allows the viewer to quickly find information about a particular topics and update or extend it if it is wrong, the typical corporate wiki grows quickly from a static set of company-approved documents to an employee-maintained set of real information useful every day.
Take for instance a company that regularly ships products. They have a "policy" document somewhere that defines the way shipping and returns are supposed to happen. However, it is often that the shipping and returns department operate slightly differently. If the customer service operators or the fill-in shipping department crew had to use the outdated, slightly inaccurate shipping policy, they may set the wrong expectaiton with the customer or do something wrong.
On the other hand, if the customer service staff and the temporary help can read the latest, real world information that was edited by the shipping department staff, they are better armed to answer customer questions as well as perform the same way the regular staff does.
wiki software is typically free, it usually runs on any server capable of running Linux, and therefore the costs are often negligible. The results can be dramatic.
Many sources of software to run your own wiki are listed at wikipedia, the world-wide encyclopedia created using a wiki.
A great presentation for making your corporate wiki outstanding and useful is available from eWeek.