The File Transfer Protocol (FTP) is the most popular protocol in use for obtaining files over the Internet. A FTP server will allow you to serve files from your own FTP site to customers using a Web browser or a standalone FTP client. For the serious file-serving enterprise a FTP server is a must-have tool. The second type of server featured here is the Gopher server. Before the arrival of the Web, gopher sites were the greatest thing to hit the 'net since, well, the 'net itself. While not as popular today, developers looking to round out their selection of Internet services will want to give consideration to the gopher servers below.