The Ultimate Question 2.0

The Ultimate Question 2.0 is now available! Learn more

Book-related video

Book trailer

Author Q&A: Why we rewrote The Ultimate Question

Net Promoter Trailblazer videos

Sponsored links

I have assembled here some links related to customer advocacy, the Net Promoter approach, closed loop feedback, vendors, and other materials I have found helpful.  Please suggest additional links by sending me a note or adding a comment to the discussion section (you must be logged in).