Asymptote is a design, architecture and research practice based in New York, and has developed 3DTF, a virtual reality trading floor, as well as a "web environment" for the New York Stock Exchange. These projects are the first large scale VR environment used for business purposes. Unfortunately, the website uses "bleeding edge" technology and is difficult to navigate. To get to the projects from the front page, you must first go through their "digital environment" subpage.
Al Roth’s Game Theory and Experimental Economics Page
Al Roth is George Gund Professor of Economics and Business Administration in the Department of Economics at Harvard University and Harvard Business School. He maintains an extensive collection of links on game theory generally aimed at a college or graduate level audience. Of particular interest is his collection of experiments to participate in via the web or classroom.
Agent-Based Computational Economics (ACE)
ACE brings together the disciplines of evolutionary economics, computer science and cognitive science in order to model economies as evolving systems of autonomous interacting agents. This website has a wealth of information and news on this field, but is aimed for graduate level audience.
Classroom Expernomics Classroom Expernomics is a newsletter dedicated to the use of economic experiments as a teaching tool for the classroom, published annually. The games described are generally for a college level audience.
Prof. Ariel Rubinstein of the School of Economics, Tel Aviv University and the Department of Economics, Princeton University has a very good paper entitled, Experience from a Course in Game Theory: Pre and Post-Class Problem Sets as a Didactic Device. He also provides an excellent set of free user-friendly didactic tools for conducting web-based through experiments, Games-and-Behavior.
The British Museum
The British Museum is world-renowned for its numismatic collection (Department of Coins and Medals), containing about a million objects from the 7th century BC through the present. The site features an exhibit, "Brief Lives," on the legacy currencies of Europe - those that are being replaced by the Euro. Beyond that, the site offers background on the collection and research of the museum, but a limited number of images. They do have an extensive bibliography which would make an excellent starting point for research in numismatics.
Museum of American Financial History
This small but well-designed museum located in Manhattan showcases the history of Wall Street and the achievements of American businessmen and women. Their website provides highlights of current and past exhibits as well as choice items from their permanent collection. You can also download financial-themed wallpaper for your computer.
The American Monetary Institute
Despite the institutional name, the site appears to be the work of a single individual, Stephen Zarlenga. There are a very small number of resources available for free; most seem dedicated to debunking an exchange theory of money.
A Proposal for a Federal Employment Authority by Martin Shubik
Accounting: A Virtual History
The Association of Chartered Accountants in the U.S. provides a brief overview of the history of accounting from ancient accounting through the "Method of Venice" to modern accounting.