Share of search = share of market, and data suggests that brands with a higher and increasing share of search will enjoy sales growth in the future. One of the questions pitched at him was, “Is digital PR link spam?”Mueller answered:“I think a lot of digital PR is really fantastic. And by measuring our share of brand search and buyer intent search, we can prove our value. So, as SEOs, we can actively measure a brand's share of search interest and the share of buyer intent search volume. Leverage SEO, and the code of search engines, to grow the share of buyer intent search.