Media: I studied film and media in college and can talk about anything involving movies, tv, and internet culture.
Politics: I used to run political campaigns, I worked at an elections office, and I just finished up working at the State Capitol. I listen to talk radio in the car instead of music.
Science: Specifically marine science and environmental education. I used to work at an aquarium and specialized in shark care, I SCUBA dive, and I am working at SeaWorld, San Antonio this summer in their education dept.