Electronic commerce (eCommerce) is the conduct of business by electronic means (which includes the Internet) and is rapidly becoming a competitive necessity rather than just a business opportunity for organizations worldwide. It is therefore essential that university students and business professionals be given the opportunity to learn about and experiment with eCommerce solutions that can be exploited by organizations. This article discusses the design, development, and use of an Internet-mediated, international business simulation called Teaching Realistic Electronic Commerce Solutions (TRECS), which is currently fulfilling this need for experiential approaches to eCommerce education. The article summarizes 5 years of experience in the use of TRECS in Australia and describes planned extensions to the business simulation that will incorporate additional Internet-and Web-based techniques.