I applied through a recruiter. The process took 2 weeks. I interviewed at Aon (New York, NY) in Jan 2008
Interview
After applying for several positions at Aon through their website, an Aon recruiter called me about one that hadn't been posted yet that she believed I would be a good fit for. I interviewed with the Managing Director and provided a lot of sample work before the second.
The interviewer wanted to make sure I was looking for a long term commitment given that I was looking to leave a firm I had been at for only 3.5 years.