Update!: Experience Dynamics has made this diagram available as a poster-size print, perfect for hanging in your office, cube or team-area. Visit their site for ordering information:
This was a fun diagram to work on. Frank Spillers, of Experience Dynamics saw my earlier Flickr diagrams and wanted to commission something similar with some general usability and user experience concepts.
The idea was to emphasize the readability and approachability of the subject matter (keep it fun!) and not overload the map with too many concepts. Hence, this piece: "The Importance of User Experience." (Used here with permission.)
The best part of this diagram, for me, was collaborating with Frank, who's an enthusiastic and dang bright guy.