Interview Techniques

As you may have read in past posts, I have used a couple of different ways to interview. What I have found to be the best technique when doing accounting and finance search may not be the best way when recruiting for IT or engineering. When recruiting for A&F I found it best to cold call into some of the big firms, attend the CPA functions, etc. Since recruiting I have found email to be one of my best resources since IT folks seem to be more responsive to this sort of communication. I have sent out a list of questions to shorten the time on the phone and have had a good amount of success.

So the question is what have you used in the past to interview candidates and what have you found the best at working?