I applied through university. The process took 3 weeks. I interviewed at Google in Apr 2010
Interview
I got a email from a recruiter who set up a phone interview with me. They called me a week later, had a few general background questions, then a few questions about the position and why I was interested. Then they said they'd let me know if they were interested. They sent me another email asking em to come to teh main campus, where i had 4 one-on-one interviews.