A '''public service announcement''' is an [[advertisement]], not to sell a product or service, but to promote a concept "for the public good." The typical buyer is either the government or a non-profit organization promoting a value it finds conducive to good government or to its version of a sound society. | A '''public service announcement''' is an [[advertisement]], not to sell a product or service, but to promote a concept "for the public good." The typical buyer is either the government or a non-profit organization promoting a value it finds conducive to good government or to its version of a sound society. |