Marketplaces by types of participants: C2C, B2C and B2B

Of the 6 (9) sources in the annotated bibliography, at least 2 (3) should be from a book, e-book, personal interview, or media resource (i.e. TV broadcast, or film); 2 (3) should be from a periodical (newspaper, magazine or journal) and 2 (3) should be from freely accessible websites. ................
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