A system for identifying digital content related to a portion of a block of text receives, automatically or via input by a user, an indication of one or more words included in the block of text. The system searches a database of digital content based on the one or more words and retrieves from the database one or more digital content items or identifiers of digital content items that are related to the one or more words. The system provides the retrieved digital content items or identifiers to the user, and receives a selection of one or more of the provided items or identifiers from the user. The system associates for display or replay the one or more selected digital content items with the one or more words in the block of text. Other embodiments of the system are also disclosed.