As many have found out in recent months (if not years), resources to support making the case for research data management are thin on the ground. We have started a collection here, some of which we have produced ourselves and some of which have been suggested by others. If you're aware of any resources not listed below please login and suggest an edit. Alternatively, contact email@example.com.
These resources are all being made available under a CC BY 4.0 licence unless otherwise stated.
High Level Business Case - published by Jisc
cessda Cost-Benefit Advocacy Toolkit - Published by the Consortium of European Social Science Data Archives
LEARN Project Research Data Management Toolkit - Published by the LEARN Project
RISE, Research Infrastructure Self Evaluation Framework - Published by DCC