Create MVC 5 App with Facebook, Twitter, LinkedIn and Google OAuth2 Sign-on (C#)by Rick Anderson This tutorial shows you how to build an ASP.NET MVC 5 web application that enables users to log in using OAuth 2.0 with credentials from an external authentication provider, such as Facebook, Twitter, LinkedIn, Microsoft, or Google. For simplicity, this tutorial focuses on working with credentials from Facebook and Google. Enabling these credentials in your web sites provides a si
