Gender at Work
https://genderatwork.org/
Show Me 50: The Dimensions of Gender Equality
(paywall) SHRM: How to Develop a D&I Initiative
This resource is no longer publicly available.https://www.shrm.org/resourcesandtools/tools-and-samples/how-to-guides/pages/how-to-develop-a-diversity-and-inclusion-initiative.aspx