The document outlines the Education Development Center, Inc.'s projects focused on youth engagement with STEM content through the National Science Digital Library (NSDL). It describes a youth-centered design methodology, including phases such as surveys, focus groups, and co-design teams to understand and enhance youth online technology use and STEM resource quality. Key findings reveal insights into how youth search for and utilize online content, as well as the need for effective partnerships and resources to encourage responsible technology use among young learners.