I did a phone interview with several developers, where I was asked about my past experience and technical questions relating to that experience. I then a programming skills test. They did not mention that you couldn't use the Internet as reference, but I assumed they preferred me not to do so. After that, I had several on-site interviews where they tried to find the best fit for me. The interviews were group interviews, with behavioral questions, experience-related question, and some whiteboard questions. Everyone was incredibly professional and went out of their way to make sure I wasn't nervous.