Cyberspace is real and profoundly influences societies about their capacities to effectively organize social and economic activities. The constituent components of cyberspace include human, code, software, and hardware. The Internet provides the hardware skeleton of cyberspace. Human interactivities with all kinds of codes produce many types of cyberspace. All Internet functionalities and all human and information activities inside cyberspace are facilitated by software. This entry introduces how to map cyberspace by using different components of cyberspace.