John has given a number of interviews, the most recent an extended discussion with John Edwards on XMPR.
These interviews give insight into John's talent, his writing, and his activism on social issues. They are well worth listening to (and reading).
Bob Edwards Interview (Part 1)
Bon Edwards Interview (Part 2)
Bob Edwards Interview (Part 3)
Bob Edwards Interview (Part 4)
Listen to a RealAudio interview with John at WebActive
Read an interview with John on The Hornpipe