The article discusses the issues of conducting transactions for agricultural products via the Internet between businesses. In particular, it is dedicated to the so-called electronic agricultural commodity marketplaces that are virtual meeting places of buyers and sellers of agricultural commodities. The purpose of this article is an indication of the changes taking place in the agricultural market under the influence of electronic marketplaces for agricultural commodities. The research method that was used to write this article was a case study. Three foreign electronic agricultural commodity marketplaces were analysed. Information on electronic marketplaces described came from their websites and scientific studies. The presented three examples of foreign electronic agricultural marketplaces show how complex issue is the development of electronic markets for agricultural commodities and how they induce profound changes in the functioning of traditional agricultural commodity markets.