Brennan developed a deep appreciation for libraries in his youth when he realized that in addition to books, the library had comics and movies. Requiring a steady stream of comics, he saw it as unnecessary to own each one. In the days of dial-up, he found the library to be one of the better places to find foreign, artsy and weird movies. Brennan is an electronic musician and a support person for individuals with cognitive disabilities. He has an eye for emerging internet trends.