Joe Sokohl was interviewed by Tom Johnson at the DocTrain West 2008 conference in May of this year. Joe gave a presentation on "How to create user-centered documentation." The interview is a 15-minute MP3 file played online; it is well worth the time to listen and take notes. There's also an excellent bibliography included in the blog text.
http://www.idratherbewriting.com/2008/05/30/podcast-how-to-create-user-centered-documentation-interview-with-joe-sokohl/
