Most of the netiquette rules you'll find in this book apply to most areas
of cyberspace. Nevertheless, remember that cyberspace is composed of
various network domains and services, each with its own character and
rules. Currently, cyberspace can be divided into two major domains: the
Internet and the commercial online services.
The Internet
Many people have heard of the Internet, but confusion about what it
actually is remains. There is a technical definition: