This document provides an overview of the different paths available to book a hotel room. It outlines 6 main options: 1) booking through a hotel brand's portal, 2) directly on a hotel's website, 3) using reverse auction sites, 4) booking through an online travel agency, 5) mobile booking apps, and 6) making reservations through Facebook. The document aims to inform readers about current hotel booking opportunities in the digital era where smartphones and tablets have greatly influenced travel trends and online commerce.