The subject "
human behavior" is really wide open -- can you be more specific?
Are you looking for the biology of human behavior? Human behavior w/r to environment? Social behavior? Non-social behavior? Perhaps a list of different different fields of research or study on human behavior?
click on the links for GS of the following:
human behavior fields
human behavior, environment, studies
social psychology research
research in human psychology
biology of human behavior
Internet forum behavior when you can't sleep 
Hope that at least gave you something to start from...