Research Issues

The Journal of Public Relations Research hasn't been much help...with regard to my topic. I thought I'd be able to find some pertinent info but no luck. My annotated bib is a culmination of articles and case studies from other PR sources, which I think is great but I'm not sure if they apply. I'm thinking that I may need to further revise my research question. I don't want to change my question or subject because I'm certain this is what I want to do for 693 but will it cut the mustard? I may need to dig deeper or try to tap into some outside sources in PR World.