title: What is the difference between an Azure Web Site and an Azure Web Role
body: <p>What are the material differences between the new <a href="https://www.windowsazure.com/en-us/home/scenarios/web-sites/">Azure Web Sites</a> and the traditional Azure Web Roles for an ASP.NET MVC application?  What reason would I choose a "web site" over a "web role" or vice versa?</p>
  
  <p>Let's assume that I would need equal capacity in either case (e.g. 2 small instances).  The prices seem comparable other than the fact that there is a 33% temporary discount for web sites while they are in their preview period.</p>
  
  <p>Are there things that I can do with a "web site" that are difficulty or impossible with a web role?  For example, does it become easy to put multiple web sites in a single set of VMs using "web sites"?  Do I lose anything with a "web site" vs a "web role"?  Ability to fine tune IIS?  Ability to use the Cache service locally?</p>