This document provides an overview of OER policies, projects, and research in South America, Sub-Saharan Africa, and South and Southeast Asia as background for the ROER4D project. It summarizes the ICT infrastructure, policy landscape, key OER initiatives, and state of research for each region. The document also outlines the research sub-projects and teams of the ROER4D network which aims to investigate adoption and impact of OER in the Global South.