Bill was a great coworker and person in general. Over the years he has helped me from his days at Search Engine Land to working at the same place. One of the few True SEO's I have been running with + into for over 2 decades. It didn't matter if you were new in the field or an industry vet, he would always respond to a PM when I needed the most accurate info. He even liked my article written on About.com for a metasearch I created years back, when he was at SEL which was a big deal for a little guy doing his thing. I was shocked to us being coworkers years later. You will be missed by many brother.