This document summarizes a project exploring how cognition, culture, and learning theories like constructivism and connectivism can support personal learning networks employing a variety of resources. It discusses four topics that contribute to this approach: cognitive science, educational neuroscience, learning theories, and culture. For each topic, it provides an overview and references for further reading. Across all topics, it identifies recurring themes of the individual nature of learning, benefits of collaboration, and the ongoing role of teachers in facilitating networks.