So, what are the information seeking habits of engineers in industry? They just ask their friends. Take a look at these two news stories (1, 2) about a study done on aerospace engineers. Apparently they prefer to ask a co-worker they know well as opposed to using any print (or even oline) source or even an expert they may not know personally. I haven't been able to track down the original article yet, but when I do, I'll post the source here. From Lisnews.