This document discusses search engine marketing (SEM) and provides information on various SEM strategies and tactics. It defines SEM as a form of internet marketing that seeks to promote websites by increasing their visibility in search engine results pages. The document outlines different SEM methods including search engine optimization (SEO), paid placement, contextual advertising, and paid inclusion. It also discusses pay-per-click advertising, SEO techniques and best practices, social media's importance for SEM, and how to measure SEM success using metrics like Google Analytics.