This thesis considers narrower concept of e-business, scope e-commerce with focus on B2C. In theoretical thesis part e-commerce is defined according to different aspects. Further there is actuall e-commerce status analysed. In practical part chapters are structured according to aspects which are based on the external environment of organizations. These are legal, technical and economical, psychological, social and culture factors. These factors are analyzed and in some cases situation in the Czech Republic is compared to situation in the United States of America. This thesis is focused on to show which aspects influence e-commerce development in the Czech Republic. E-commerce is currently growing dynamically, the number of companies buying ...