In this article, the author provides a summary and overview of the key aspects of Internet music. He examines popular conceptions of Internet music and seeks to define the topic by exploring some music that draws inspiration from networking without actually being Internet music itself. He describes some basic Internet music concepts and attempts to classify it into various types: music that uses the network to connect physical spaces or instruments; music that is created or performed in virtual environments, or uses virtual instruments; music that translates into sound aspects of the network itself; music that uses the Internet to enable collaborative composition or performance; and music that is delivered via the Internet, with varying degrees of user interactivity.