Azure has two popular choices for hosting web applications in a platform as a service model: Cloud Services and Web Apps. In this talk I will give a quick introduction of Cloud Services and Web Apps, then dive into the Pros and Cons of the two approaches by focusing on three scenarios: 1. Simple web site/application (1 tier app) 2. Web application with backend processing (N tier app) 3. Web application(s) with multiple backend processing and DMZ (N tier + DMZ) This presentation is designed to help you understand which choice is best for your situation.