A powerful framework for creating RESTful services is much needed in the current world of client dominated web development. ASP.NET Web API from Microsoft is an amazing solution for this problem. Understanding fundamentals of REST and getting an insight of ASP.NET Web API has become essential for all .NET based web developers. Pluralsight offers this knowledge at free of cost for all developers in the form of high quality videos created by industry experts. Make sure to check them out because they are free!