If you are new to Amazon Web Services (AWS), you can try out several key AWS products by signing up for the AWS free usage tier. The free usage tier gives you limited access to these products at no charge. If your usage exceeds those limits, you pay only for the excess usage. This guide explains the free usage tier and walks you through the process of deploying an application that runs within the limits of the free usage tier. It also explains how to monitor your usage of the services while they are running.