In case of business-to-consumer scheme there are people who offer services or products and they serve as end products for people who buy them because customers are not likely to do anything else with the purchase other than use it themselves. On the other hand B2B model is set up in such a way that both parties are exchanging some products or services intending to use it somehow in the future, either for creation of their own product/service or aiming to resell for profit generation. Currently most all big and small businesses and entrepreneurs recognize the importance and overall benefits of using Internet. Both models of business welcome the possibility to cut down production costs, elimination of multiple intermediaries and costs savings as a result of technology usage. In business-to-consumer situation Internet that can be easily accessible by everyone at any time and any place is the best tool for selling goods or services. After all Internet makes the very existence of such phenomenon possible. When we consider business-to-business model a simple Web site available for everyone will not be sufficient and most probably will be a dangerous idea. Security concerns for those who operate big sums of money or have trade secrets are essential and Internet cannot provide it thus businesses have to use different tools to still make e-business possible. In order to reduce or eliminate risk of data theft, companies have started developing sites where it was safe to share information. Mostly big companies with high profits can afford such sites for the reason of expenses involved in setting the systems up and keeping them effectively running. With the help of such Web sites companies are able to communicate with their trading partners and receive information by using passwords that guarantee restricted access to the site. Such sites are called extranets; they establish a secure communication channel between two or more companies, suppliers and vendors. With the help of such network available for all players, supply chain as the most important business component is managed more efficiently causing better returns. Before extranets were implemented those firms willing to have a secure channel of communication had to send software to their partners. Such programs were expensive and difficult to install, besides it took a lot of time. Current situation does not require a lot of time or effort from neither side, now companies just have to direct their associates to a safe Web site with a specific password. By the year 2000, more than 10% of Fortune 500 companies were employing extranets and about 75% were intending to do so. Statistics show that generally companies with more than thousand employees install extranets because small companies usually do not work with businesses but with end product buyers.