This document summarizes the state of search and eCommerce for 2017 according to Elizabeth Marsten. It discusses the growth of platforms like Yahoo, Bing Ads, Amazon and Google in eCommerce search and advertising. It highlights innovations from these platforms in areas like native ads, custom audiences, and the buy button. It emphasizes the importance of high quality product data for success. The document advises focusing on data quality, mobile experiences, and shifting budgets from text to product listing ads as traffic patterns change.