I applied through college or university. The process took 3 days. I interviewed at Amazon (Columbus, OH) in Mar 2013
Interview
This was a campus recruiting event for which Amazon came to my university. It selected students from both CSE and ECE department. I am from the ECE department but was pleasantly surprised that I even received a call for interview. All the students were asked to schedule their time slots over a interviewing period of 3 days.
Interview questions [1]
Question 1
There was not a really difficult question. The first question was based on design classes. And the second one was on checking whether a binary tree is a binary search tree. One question per round. I screwed up the second question.. so did not get the offer.