The document discusses the changing nature of advertising over time from 1950 to the present and into the future. It notes that in the past, consumers had limited choices and brands, but that consumers now have more options and are harder to convince. Advertising is now everywhere across many media. Going forward, advertising will focus more on creating engaging content that consumers want to share virally through social networks. Marketers will rely more on community management, guerrilla marketing, and subtle product placements. The future consumer will be both a consumer and a producer/sharer of content.