The Internet is an electronic, global, and interactive medium, and each of these properties has consequences for the kind of language found there. The most fundamental influence arises out of the electronic character of the channel. Most obviously, a user's communicative options are constrained by the nature of the hardware needed in order to gain Internet access. Thus, a set of characters on a keyboard determines productive linguistic capacity (the type of information that can be sent); and the size and configuration of the screen determines receptive linguistic capacity (the type of information that can be seen). Both sender and receiver are additionally constrained linguistically by the properties of the Internet software and hardware linking them. There are, accordingly, certain traditional linguistic activities that this medium can facilitate very well, and others that it cannot handle at all. There are also certain linguistic activities which an electronic medium allows that no other medium can achieve. How do users respond to these new pressures, and compensate linguistically?

It is important to know what the various limitations and facilitations are. A well-established axiom of communication states that users should know the strengths as well as the restrictions of their chosen medium, in relation to the uses they subject it to and the purposes they have in mind. People have strong expectations of the Internet, and established users evidently have strong feelings about how it should be used to achieve its purposes. However, it is not a straightforward relationship.