Aleks Nikitina — January 21, 2019 — January 21, 2019 From the birth of the search engine through 2016, advertisers worked hard to make their SEM ad messages concise enough to fit into the strict character limits of a standard text ad. Every ad had 25 characters in a headline and 35 characters in each … Continue reading SERP, SEM, ETA, RSA: The Acronym-Filled Journey of Search Advertising →