Many enthusiastic bloggers has covered sling model concepts. But thought of writing all the sling model concepts that the developers, Architects should be aware of. Let me know, if I miss any concepts here.
Various Annotations used Why to avoid @inject annotation Use of Adaptable. Sling Delegation Pattern for Sling Model Get Design dialog values from sling model Reading inherited Page Properties Handling Nested multi field values from dialog Sling Model Factory Sling Model Caching