The study was carried out in order to know the various business models of ecommerce, various modes of ecommerce payments system that is existing. It also focuses on the security systems involved in E-commerce. The difference between each systems are analyzed in this study and it also deals about the key technologies in B2B Ecommerce. To understand about the EDI systems and its types was also a reason for this study. Top B2B websites are analyzed and its importance in boosting the economy was a key part of the study. The real time impact of B2B ecommerce websites and its part in boosting the economy was the main part of study. ukryj opis