Search retargeting is a little different from the other types of retargeting in this list in that it doesn’t rely on a pixel being installed on your web properties. Instead, it follows people around the web-based on what keywords they previously placed into search engines. This shouldn’t be confused with search engine marketing or “search advertising” which simply places ads inside the search engine results. Rather, this targets people based on their search terms but then follows them all around the web after they leave the search engine results.