Some definitions about ADVERTISING

1. The non-personal communication of information usually paid for & usually persuasive in nature, about products (goods & services) or ideas by identified sponsor through various media. (Arens, Weigold, Arens 2010)
2. Any paid form of non-personal communication about an organization, product,service, or idea from an identified sponsor. (Blech & Blech 1998)
3. Paid non-personal communication from an identified sponsor using mass media to persuade or influence an audience. (Wells, Burnett, & Moriaty 1998)
4. The element of the marketing communication mix that is non personal paid for an identified sponsor, & disseminated through channels of mass communication to promote the adoption of goods, services, person or ideas. (Bearden, Ingram, & Laforge 1998)
5. An informative or persuasive message carried by a non personal medium & paid for by an identified sponsor whose organization or product is identified in some way. (Zikmund & D'amico 1999)
6. Impersonal; one way communication about a product or organization that is paid by a marketer. (Lamb, Hair & Mc.Daniel 2000)
7. Any paid form of non-personal presentation and promotion of ideas,goods or services by an identified sponsor. (Kotler et al., 2006)

http://en.wikipedia.org/wiki/Advertising