Payment systems are one of basic elements of infrastructure of e-commerce. One of the common kinds of money transfer is a transfer via the international system of Western Union. Western Union incomes for 2007 have made $4,9 billion US dollars, and the quantity of transactions has made 572 million. All you need for sending money via Western Union is to go to the nearest branch of Western Union, fill out the transfer printed form, show your passport and then send money.