Google

A short, single-round phone interview will cover basic questions about your background and current work, as well as some uncomplicated coding questions.

Phone screen, good stuff. They asked me relevant and appropriate questions. It was the best interview I'd had. Free food, wonderful people, and smart guys.

I got my initial phone interview through an employee referral. This was followed up with a second phone interview, as I don't think I did too well on my first one. I did manage to get to an onsite interview in San Bruno with four interviewers. How