Twitter co-founder Biz Stone offers an excellent lesson in the importance of learning the value of a new tool by experiencing it in action:

Defining a “tweet” for the uninitiated and explaining how to create an account doesn’t resonate with everyone. “Why would I want to do that?” is a common reaction. However, demonstrating the power of Twitter as a discovery engine for what is happening right now through our Search and Trends often awakens a sense of wonder which inevitably leads to a much more compelling question, “How do I get involved?”

Good lesson for cultivating greater enterprise wiki use in your organization. Don’t bother trying to define the tool; just demonstrate a use that you know is relevant to a person or team.