In addition to information on Socialtext's open-source wiki inititiatives - http://www.socialtext.net/stoss...

There is the public customer exchange site - http://www.socialtext.net/exchange
The customer exchange can be a valuable source of first-hand experiences, tips and tricks, and other info from users knowledgable on wikis and the Socialtext solution.

Additional information on Socialtext can also be found on the company's website - http://www.socialtext.com or to be contacted by a Socialtext sales person to get pricing or a recommended solution to meet your needs - http://www.socialtext.com/contact/sales