It tells about the most popular computer programs that allow you to talk for free with anywhere in the world, communicate on forums, meet and see each other, talk in computer games, exchange files, call from a computer to regular and cell phones, etc. Particular attention is paid to security measures that need to be taken before going online, as well as quickly restoring your computer after a virus attack or hard drive damage. Programs for remote control of computers are described. The attached CD contains distribution kits of freely distributed programs described in the book. For a wide range of users.