Remember mavens as people who are experts in a particular subject and are willing and eager to help others without any expectations of return.
Well, I being an avid user of Evernote (specifically to manage my GTD way of life) I found this fascinating example of real world mavens – Evernote Ambassadors. These are passionate users of Evernote application who have volunteered to help other users to adopt or get better at using Evernote as a tool to capture, organize and archive information.
All of them must be loving helping others and Evernote has done a very smart move to leverage their mavens!