I reached out to my university recruiter and she promptly went through a phone screen with me to learn more about my background and my interest in the role. Towards the end of the conversation, she said she would feel comfortable passing me along to a product manager for a 45 minute phone screen. The phone screen consisted of culture-fit questions (Why Facebook? What is something interesting about you?) and then moved on to product specific questions (What is your favorite feature of Facebook? How would you improve it?) I would recommend preparing a bit beforehand. Finally, I was invited to their on-site interview which was probably the most fun PM interview I have had. They have three interviews that are focused on 1) future 2) reasoning and 3) product. Make sure you are structured and can tie everything back to Facebook and their core products. Overall, I had a fantastic time interviewing here and although it did not work out in the end, the culture is fun, people are great and the campus is unreal!