Wikipedia is about to be the leading encyclopedia in the world. Many serious comparisons even with Encarta and Encyclopedia Britannica come out in its favour.

Here is the site:  http://en.wikipedia.org/wiki/Main_Page

Why is it so strong:

         1)  it is huge  ( 5 million articles by now )

         2)  it exists now in more than 200 languages
              (English no. 1, German no. 2, French no. 3)

         3)  it is intended to be neutral and factual

         4)  it is free and without any copyrights

         5)  it is written by everybody - at all times

         6)  and it is used by millions of people all the time

Suggestions:

a) Check what it says about your country, your company and your activities.

b) Organise a regular update and correction when needed.

c) Use it actively in your internal communication

d) And promote it, esp. the pages of most interest to you, as much as you can to the outside world

Whatever you want to know or to do in practical terms you can almost certainly find information about it here:

www.wikihow.com 

Like all WIKI products it is constantly being created and updated by its readers.

So YOU can and should contribute too.

If you in particular are looking for good advice on how to communicate, have a look here:

http://www.wikihow.com/Category:Communications