Jon Udell interviewed wiki inventor Ward Cunningham about his recent work for the IT Conversations Podcast:

At the Eclipse Foundation in 2006, he pioneered a transformative new approach to making software-supported business processes transparently understandable both to developers and to users. Now, as CTO of aboutus.org, he’s helping to create a new wiki culture for companies and organizations to explain themselves to the world.

Ward is undoubtedly the hero of the wiki world. He also wrote a wonderful foreword for the Wikipatterns book.