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Kirk Williams is the owner of ZATO, a paid search PPC micro-agency based in Billings, Montana. His site states he has been named one of the Top 25 Most Influential PPCers in the world by PPC Hero and PPC Survey nine years in a row (2016-2025), writes for industry publications including Shopify, Moz, and Search Engine Land, and speaks at conferences on paid search, especially Shopping Ads. In 2023 he gave a TEDx Billings talk, and he has written three books on PPC marketing and agency ownership.
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