Like me, you may have missed the AzGroups.org Day of .NET event in Phoenix during the latter part of May.  I highly recommend the Hanselman treatment of OData and especially if your a bit confused by the pesky rebranding engine that hopefully has now clarified the difference between “WCF Services” and “WCF Data Services”.   Learn more about OData and how to use it within your data-consumer applications at http://www.odata.org/developers.