Nowadays you can find everything on the web – from specialized and very large stores (e-commerce), through portfolios, catalogs and portals and blogs. The Internet has completely changed the world and made ordering goods by mail order easier and easier, and now everyone can afford to place an order without leaving home, waiting in traffic jams and queues. Not without reason, more and more entrepreneurs are going online, who see in e-commerce by far the best chance to earn a lot of money, without engaging high resources, such as hiring employees for direct service or renting exclusive premises. Unfortunately, along
