That, some of you may recall, was the name of a November 1, 2013 conference put on by the Mercatus Center. (The full name was actually "Instead of the Fed: Past and Present Alternatives to the Federal Reserve System"). The proceedings of that conference–or most of them, at any rate–are now available in a special issue of the Journal of Financial Stability, edited by yours truly.
Although online access to the articles is by subscription only, individual contributors have temporary, open links to their own articles. Here is mine on "Synthetic Commodity Money."