I use Moz professional tools for SEO research purposes and insights. Moz Pro Tools are currently only used by me. Moz Pro Tools allow me to gain insight into how one domain is performing against its competitors when looking at Moz ranking factors. I also read the blog on a daily basis to keep up on the latest SEO/SEM trends and debates. Moz has a wonderful community of highly engaged professional search marketers who span the search marketing spectrum and love to share their insights and findings. I personally find a tremendous value from being apart of this Pro community!