I believe that well designed, well performed, and well reported survey research can definitely contribute knowledge to the field.  However, it bothers me that this has become the first choice for many researchers and as such has been overused compared to other types of research methods.  Some of this may be to the bias against "Qualitative" or as Robson called "Flexible" research amongst many IS researchers.  As I was thinking of this, it might be interesting to design a research study to get at what IS researchers believe is scientific, in this way try to understand their biases for or against different research methods.  This research method should be conducted to include survey research, but not be exclusive to this method.  Perhaps this research does exist and it seems to me would be very useful to understand what will be accepted for publication.  We could then analyze the top journal articles to see if the researchers are consistent with what they say is scientific.