This document provides an overview of inbound marketing tactics like search engine optimization, email marketing, social media, blogging and more. It includes various statistics that highlight how inbound marketing is more effective and less expensive than traditional outbound tactics. For example, inbound marketing costs 61% less per lead than outbound marketing and generates real customers and revenue for companies. Additionally, search engine optimization is critical as 70% of search users click on organic results, social media conversations actively influence purchases, and email marketing will grow to a $2 billion industry by 2014. Inbound channels like blogs and social media also acquire more customers and improve search engine rankings compared to outbound tactics.