Insights from wiki creator Ward Cunningham:
ADT: How did you come to create WikiWikiWeb? What was your original impetus?
Cunningham: I have always been interested in how practice spreads in engineering communities. In the early '90s I wrote a HyperCard application made especially for collecting engineer's recollections regarding engineering projects within Tektronix. I asked visitors to describe how people carried ideas between projects and I found that participants were attracted to the authoring style (top-down hypertext) supported by the application.
In '95 I set out to duplicate the authoring experience of my previous application while using the forms capability of the Web.
Read the full article for more perspectives on Web 2.0, XP, agile, etc.