The effective, efficient, and appealing learning content that future education and training depends on can take significant time and money to produce. This is especially true for highly interactive and 3D content used to create adaptive and immersive learning environments. The ability to discover and access existing, reusable content can significantly reduce costs and development time. Past approaches to enable this discovery and access have been focused on the Advanced Distributed Learning (ADL) Registry (a searchable catalog of metadata describing content and its location). The ADL 3D Repository is a technology that reflects an expanded focus to include repositories that provide immediate value to users. While this repository technology is focused on sharing 3D models, it provides a blueprint for enabling the discovery and access of learning content. It makes uploading, finding, viewing, converting, and downloading content easy. It integrates directly into immersive environments and editors where 3D models are used. This paper will describe the 3D Repository technology and how it addresses the challenges reported in a 2009 RAND study investigating the prospects for reuse of training content. Efforts to share and federate this repository platform with partner organizations will be discussed.