This document provides an overview of digital marketing and advertising history. It discusses the origins of advertising in India in the 18th century and defines key digital marketing terms. Some of the major developments highlighted include the first banner ad in 1994, the rise of search engine marketing/optimization, and the evolution of marketing techniques from the 1970s focusing on telesales to the 2000s focusing on customer relationship management. The document also outlines different paid search options on platforms like Google AdWords and YouTube, and discusses bidding strategies, keyword targeting, and ad extensions.