This trusty reference provides the guidance for establishing a Facebook profile, connecting to others in your network as well as others in other networks, establishing or joining user groups, customizing your profile, finding cool Facebook applications, using Facebook as a business tool, and creating and adding your own applications.
If you look at any successful wiki community, whether it be Wikipedia or an internal wiki inside a company, you will find many different people playing many roles. With a wiki, whatever your inclination, there is always a way for everyone to chip in and add his and her special talent or knowledge to the mix.