This post brought to you by the fact that the last two times I've gotten in the car I've heard, respectively, "U Can't Touch This" and "Gangsta's Paradise".
Hip hop is one genre where I often find myself lost. I know what I like (and it tends to be mainstream). I don't really know what I don't like (because my exposure is somewhat limited). I know that there are songs I tend to get tired of, and some that I could listen to a lot. I know that I don't know a lot about the history or movements or artists. I know a little, but that's pretty cursory. Anyway, it's a topic I can't speak knowledgeably about, but I'm guessing there are plenty of people here who can.