This document summarizes a presentation by Linda Leung, a senior product manager at LinkedIn, about product management in online advertising. Some key points covered include: - An overview of Linda's background and career path in physics, economics, strategy consulting, data analysis, and product management roles at LinkedIn. - Statistics on the size of the US online advertising market and the major tech companies involved. - The types of products worked on in online advertising around tools for advertisers, publishers, and connecting the two sides of the market. - Metrics like eCPM, CPC, and CTR that are important for advertising products and businesses. - Strategies for building a successful ads business through targeting,