EN
Appearance, apart from traditional market forms, of the new market dimension, so called „infospace", is mainly caused by new information technologies and Internet in particular. Emergence of Internet originated the real electronic market. Article is an attempt to explain the idea of electronic markets. It presents existing in literature, different approaches to that concept. Article points out the basic differences between electronic and traditional markets. Moreover it indicates various classification of electronic markets and concentrates on the public and private marketplaces specification.