This document lists various open educational resource (OER) and reusable learning object (RLO) repositories that contain searchable and interlinked educational content. It provides URLs to repositories such as Merlot, OER Commons, and Connexions that contain lessons, activities and other learning objects. It also lists repositories for multimedia content including videos, pictures, audio and interactive tools that can be used or reused in teaching. The document suggests ways these open resources can be shared and used, and provides additional online resource links.