What approach to identifying opportunities did Benji Rogers $($PledgeMusic$)$ and Brittany Hodak and Kim Kaupe $($ZinePak$)$ use? Explain your answer. By creating PledgeMusic and ZinePak, do you think Rogers, Hodak, and Kaupe filled any gaps in the marketplace? If yes, what were they? If no$,$ explain. Do you think there were economic, social, technological, and$/$or political trends that made these businesses possible? If yes, what were they? If no$,$ explain. Suggest one or two additional business ideas that would allow musicians to better engage with their "super fans".