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Public broadcasting, also known as public service broadcasting or PSB (though this term has a specific different meaning in the United Kingdom - see public service broadcasting in the United Kingdom), where radio, television, and potentially other electronic media outlets receive funding from the public, has traditionally been the dominant form of broadcasting around the world. The broadcasters' funds can come directly from individuals through donations or fees, or indirectly as state subsidies that originated in taxes or other national funding sources. Some public broadcasters supplement this with contributions from corporations, which may be granted a limited amount of advertising time in return. However, when advertisements occur on public broadcasting outlets, they are usually much shorter and less attention-grabbing than on commercial broadcasting stations. Commercial broadcasting now occurs in many countries around the world, and the number of countries with only public broadcasting has declined substantially.