I applied online. The process took 2 weeks. I interviewed at Adconion (Los Angeles, CA) in Jun 2012
Interview
Multiple interviews with multiple interviewees. They even took me to eat because I was coming from out of town.
Questions include how many ways I can use a paper clip, how much knowledge I had about the industry (NOT on the website), how much I knew about the company/executive team and if I could make a supply/demand graph!
Interview questions [1]
Question 1
The questions weren't terribly difficult. The most difficult question was about slicing a cake 3 times into 8 equal pieces.