After I generate a scaffold, Rails gives me the ability to POST to items.xml which will create a new item. A GET to items.xml will sim
To be honest, you can't really go wrong with the routing documentation on the Rails website. This has helped take the next steps and move beyond the comfort of resources (which for most apps is fine)and really nail down the solid routing features available.
http://guides.rubyonrails.org/routing.html