Social media is a broad term incorporating blogs, wikis, Internet communities and online discussions. Community sites such as Facebook and Myspace are immensely popular with young people and business-oriented alternatives such as LinkedIn and ecademy are widely used in networking.
The transmission of sound and vision programmes by radio and television.
From Key Concepts in Radio StudiesTalk radio is a radio format and an almost exclusively American phenomenon that owes its remarkable success to the specific conditions in the US radio industry. Between 1987 and 2003 the number of talk radio stations in the USA grew from 125 to 1785, often broadcast on AM radio.
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