What is a resource?

In "Creative Ways to Organize Library Resources" it says, "This raises questions about how this will change our traditional approaches to organizing learning resources and, in fact, what a learning resource really is."  This really caught my attention because when considering the question of accessibility for the assigned discussion post, what came to mind for me was students' opportunities for interactions and using one another as a resources.  I back-peddled, thinking that this being a library organization course, this clearly was not what was meant, but perhaps it can be.  I am feeling quite out of my depths right now.