Radio broadcasting did for the spoken language what print had done for the written, adding new forms of talks, announcements, sports commentaries, news broadcasts, weather forecasts, and many others

The advent of television added yet new genres: televisual speech varieties are not the same as radio ones

The written language of television (as found, for example, in commercials) is not the same as that found elsewhere

The advent of the mobile phone with its space-restricted screen has motivated the development of a further variety based on linguistic abbreviation, in the form of text-messaging