Authenticity Consulting has a pretty capable resource http://www.managementhelp.org/ , that has good overviews of a number of areas in management. I don’t think “library” is the best descriptor. The site has a good number of high level overviews on a number of business related topics.
Business Law, Economics, Finances, Management, Negotiating, Website
Wikiversity has a great outline of the subjects you need expertise in to advance you MBA.
http://en.wikiversity.org/wiki/Topic:Master_of_Business_Administration
Business Law, Economics, How To, Leadership, Management, Negotiating, Website
These studies have more of a focus on negotiations from an international conflict standpoint, but I felt that they were of such high quality, they merited entry.
http://www.law.stanford.edu/program/centers/scicn/#scicn_papers
This is a wonderful site! SAS has gone out of their way to provide business people with a great site to get current informaition on a number of business related topics. http://www.bettermanagement.com/default.aspx
An overview of business law resources can be found at http://www.re-quest.net/g2g/topics/business/