ALA has created a standardized ILL form for requests that can’t be transmitted electronically.
The Rethinking Resource Sharing Initiative is an international, ad hoc group that advocates for the continual rethinking of Resource Sharing as technology develops and changes. The website includes information on the organization, their services, and ways to get involved.
This checklist (of about 100 questions) allows libraries to evaluate their current inter-library loan practices as compared to best practices. The purpose of the guide is to "start conversations about what we can do, and what we should consider, as we set library information sharing policies."