This video presents how developers can build RESTful solutions using Microsoft’s technologies, especially with WCF and .NET.
http://www.infoq.com/presentations/Building-Systems-with-REST

Many developers use services to build and integrate applications and line-of-business systems with SharePoint. With SharePoint 2010, developers now have a wider array of options that include ASP.NET, Windows Communication Foundation (WCF), and RESTful services. Come get a demo-rich walkthrough of each option and discuss where each of the services might be appropriate and what you stand to gain by using them.

Data and Modeling Group Architect, Pablo Castro, discusses RESTful ADO.NET Data Services with Ted Neward

Come hear an overview of the REST principles and why REST is becoming popular beyond traditional Web applications. Learn how to write applications that produce and consume RESTful services using the .NET Framework 4 and the improvements we have planned for future versions of the .NET Framework.

In this interview from QCon San Francisco 2009, Don Box discusses the history of SOAP, XML, XML Schema, RELAX NG, SOAP and WSDL, REPL, opinions on REST, REST at Microsoft, coexistence of REST and WS-*, the M programming language, M and DSLs, M versus XML/XML Schema, Data as XML, and future plans for M and data modeling at Microsoft.

http://www.infoq.com/interviews/box-soap-xml-rest-m