One of the most interesting business books I have read lately has been the The Long Tail.
Given the planning work I'm doing with XNA Game Studio Express (getting close to shipping now!), it was a fascinating book and really helped articulate the "gut" feel that many members of the team feel when it comes to community generated games.
Many of the management team have also read that book as well, so that allows me to use some of the terminology in the book to help describe what we planning to do around sharing games. As I started to do more research I found that XNA Game Studio Express had been picked up by many people and linked to the Long Tail (including an article by the author himself). Some of the links I found were:
Chris Anderson (author of the Long Tail) also links to an post about some comments that Peter Moore (one of my indirect bosses) made at a conference around game development. A surprising number relate to the work that we are doing:
I think that points 1, 3, 4, 6, 7, and 8 are particularly relevant to what we are doing.
So if you have the chance, pick up and read the Long Tail - it's well worth the read.