World Wide Web vs cyberspace

World Wide Web

name
  • Usually preceded by the: collectively, all of the hypertext documents (web pages) on the Internet stored in different computers around the world that hyperlink to each other and to other kinds of media, and are typically retrieved by the Hypertext Transfer Protocol (HTTP) and Hypertext Transfer Protocol Secure (HTTPS). 

cyberspace

noun
  • A three-dimensional representation of virtual space in a computer network. 

  • A world of information accessed through the Internet. 

How often have the words World Wide Web and cyberspace occurred in a corpus of books? (source: Google Ngram Viewer )