Is there a great guide to non-technical interviews out there?

Over the past 6 months that I've been unemployed, I've been on about 5 in-person programmer interviews at companies. These interviews were for entry-level positions, and only 3 had any technical component to them (something small, such as a programming assignment or some questions over the phone before the interview). All 5 ended with the people going for another candidate, even though I thought they went great. There are 2 possibilities here: I'm doing something wrong, or the other candidates really were better. While I'm inclined to believe the 2nd, I can control the first. I don't really know what I'm doing wrong, but I was wondering if someone could point me to a great guide that helped them deal with non-techincal interviews?

Some background on me (in case it helps):

When I interview for positions, I bring a list of questions with me, so that I have a lot to ask after the interview is done and they ask "do you have questions for us". While I've been commended on some of the questions I'm asking, it hasn't seemed to help.

B.S in Computer Information Systems; graduated 2011.

Seeking work/positions that involve .NET, as that's what I'm best with.

Was laid off from my first job out of college after 1.5 years, and let go due to lack of incoming work from my most recent job after 2.5 years. There were 7 month and 1 year unemployment gaps between getting these jobs, respectively.