The document discusses various examples of viral marketing campaigns for different brands such as Hotmail, Burger King, Watchmen, Peerflix, Bob Dylan, Smirnoff, The Simpsons, Dove, and The Dark Knight. It provides details about the campaigns such as how they engaged users online through interactive websites, videos, games and fake media. Many of the campaigns were highly successful in generating millions of views and interactions online which helped promote the brands.