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Taken together, these 3 features yield powerful results. For example, content authors may wish to find all of the videos in their courses that cover the subject of “factoring binomial equations”. When all of the relevant videos are tagged for “factoring binomial equations”, authors can conduct a search and easily find this content. If they wish to reuse a particular video, they can then copy it and paste it into any other course. Tags will follow content when it is reused.