Jeanie, as Anne said it is not uncommon practice to request feedback but not a lot of people do. I figured I had nothing to loose by asking, and I must admit I was miffed at not getting an interview:). My skills and experience matched the job description very well so I was keen to know where I may have gone wrong in my application. It can be very helpful if the company is able to provide constructive feedback, which to be honest these guys didn't really. But even so I still learnt something and it was a useful experience.