title: Design Patterns using IQueryable<T>
body: <p>With the introduction of .NET 3.5 and the <code>IQueryable&lt;T&gt;</code> interface, new patterns will emerge. While I have seen a number of implementations of the Specification pattern, I have not seen many other patterns using this technology. Rob Conery's Storefront application is another concrete example using <code>IQueryable&lt;T&gt;</code> which may lead to some new patterns.</p>
  
  <p><strong>What patterns have emerged from the useful <code>IQueryable&lt;T&gt;</code> interface?</strong></p>