Effective collaboration with wikis | DavePress
Buzz Marketing for Technology
JULY 11, 2008
Other hosted options include pbWiki , Stikipad (see comments), Wetpaint and Wikia. The cost for Wikispaces goes from free to £4,000 a year, depending on what you are after. Most offer, like Wikispaces, different levels of customisation for different prices. Other things will be bound to go wrong at some point. Definitely the way to go.
150 
Let's personalize your content