Before Google
Sullivan is regularly described as the father of the search engine marketing industry. It is unusual praise for a journalist rather than a practitioner, and it reflects the fact that he was documenting and naming the field while it was still forming. The conferences he helped build — SES, then later contributions to SMX — became where the industry met itself.
The liaison role
The job runs in both directions. Outward, he translates ranking systems, quality guidelines and product launches into language that publishers and site owners can act on. Inward, he carries feedback from the industry into the Search organisation. For anyone tracking what Google actually says versus what the trade infers, his posts and the Google Search Central blog are the primary source.