The term media (singular form: medium) refers to the source of information and communication channels or tools through which we disseminate news, music, movies, education, promotional messages and other data from both old and new media. It includes physical and online newspapers and magazines, television, radio, billboards, telephone, the Internet, fax and billboards.
It describes the various ways through which we communicate in society. Because it refers to all means of communication, everything ranging from a telephone call to the evening news on television can be called media.
When talking about reaching a very large number of people we say mass media. Local media refers to, for example, your local newspaper, or local/regional TV/radio channels.