I found this article "15 Rules for Negotiating a Job Offer" in April's Harvard Business Review. The author is Deepak Malhotra who is the Eli Goldston Professor of Business Administration in the Negotiations, Organizations and Markets unit at Harvard Business School.
http://hbr.org/2014/04/15-rules-for-negotiating-a-job-offer/…
There's also a 65 min presentation followed by Q&A on Youtube entitled "Negotiating Your Job Offer" by Deepak.
http://www.youtube.com/watch?v=km2Hd_xgo9Q
I hope that the above free resources will benefit someone.