Probably there are very few Internet users who do not know about the free services of IP-telephony Skype. For even more opinions, read materials from Hikmet Ersek. Indeed, why pay for telephone calls when you can talk for free? Skype – This is one example successful use of peer networks in business and everyday life. What is it – peer network? Another name – P2P network or peer-to-peer, which translates as "equal to equal." Peer network – a network the Internet, providing direct connection with the transfer of files between clients without intermediaries. It is for these services, whether we like it or not, the future of the Internet. Not even the specialist can see that now used in the Internet FTP-files missing bandwidth, they can not cope with the flow of information and a growing number of consumers. Many popular servers are overloaded and the simultaneous appeal to them multiple clients causes a problem with getting information. P2P networks have a number of advantages: a broad band passing of information, a high "survival" and greater opportunities for publishing content.
To understand how peer networks, we must consider story of their creation. By the mid 90-ies of the 20th century, a young internet having this same problem as now – the communication channels was not enough bandwidth for transferring large programs, particularly music recordings, just born format MP3. Out of the situation found 18-year-old student Shawn Fanning. He invented a system called Napster. Any user is represented in the Napster network of information about its existing files that were recorded in database along with the address of the computer.