Some time ago Microsoft has introduced the ASP.NET Web API framework. It's a framework you can use to create your own RESTful services. It's much like WCF Data Services or WCF RIA Services, but a lot easier to use (IMO). I've never liked the WCF-stack much, probably because configuring it always posed to be a hassle.
Using the Web API framework is much easier and you have to configure a lot less, or at least I haven't found all of the configurable options yet.
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