http://msmvps.com/blogs/nunogodinho/archive/2009/07/06/interesting-articles-regarding-net-ria-services.aspx.NET RIA Services are here to make our life easier and they were introduced as part of the Silverlight 3.0 but are not only for Silverlight. Some interesting reading about it is this: Getting started with the .NET RIA Services by Maurice de Beijer thatenCommunityServer 2008.5 SP2 (Build: 40407.4157)