This blog entry by
Dan Pink is an interview with author & Harvard Business School Professor Teresa Amabile about her latest work "The Progress Principle."
I personally have not read the book yet -- however the interview alone shed some very profound light on the topic of progress in the workplace particularly concerning the culture of the workplace and supervisor/employee relationships.
This entry is worth the read alone -- and i imagine the book is a must read.
While i am at it i recommend checking out Dan Pink's "stuff." He is a good source of info on Twitter and the 2 books he advertises on his blog are very enlightening as well.