One of the most important things you can do in preparing for an interview is, if it's at all possible, find out who is actually interviewing you. Who's conducting the interview? And then what you want to do is go on LinkedIn and find out as much information about them as possible, so that as soon as you walk into the room, you have a point of reference. You can say, "Hey, I heard that you graduated from the University of Wisconsin," or "I didn't realize this, but you worked at Microsoft before you came to this company." As much as possible, you want a level of familiarity, so that when you walk into the interview you lose the sense of tension and sense of nervousness. If you know something personal about the individual, or something in the context of what they've done in their career, that's a perfect segway into the interview. So that's really how you ultimately want to prepare is you want to know something about this individual. Don't feel afraid of actually asking who is going to be conducting the interview. Get their name. Google search them. Learn as much as you can about them so that by the time you go in for that interview, you have a frame of reference so you can make a connection and make a great impression. That's what you need to do in preparing for an interview.