I looked at the first directory which provided an alphabetical list of agencies. Only 6 out of 20 listed agencies provided links to their home page and one of those six links was dead. All the agencies gave a generic overview of providing public relations services, so to find out how they differed, I had to go to their sites. I only clicked on the first two and I was working very fast. I guess a generic term of a town name and PR agency still requires a lot of research and Google can't answer the question above within five minutes.