Had an initial phone call to talk about my interests. Then a new recruiter emailed me to schedule a technical interview. Afterwards, yet another technical recruiter called me by phone to do a phone interview over Google Docs. Good experience, the questions are hard, but not that hard. My questions literally came from the book Programming Pearls. So.. after you brushed up on your algorithms, go read Programming Pearls. In the end, Google did not offer me a position. It was a very interesting experience which taught me a lot.