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I'm also now writing for the StrongLoop blog. I won't update my blog here every time I post there, but I strongly urge my readers who want to learn more about StrongLoop, LoopBack, and Node.js in general to sbuscribe there as well. My latest article there, "Examples of Validations for LoopBack Models", discusses some specific examples of validation within LoopBack. I'm currently working on an article now that deals with the ORM API and relationships.