The document discusses content curation, which it defines as the selection, preservation, maintenance, collection and archiving of digital assets. It provides several definitions of curation from experts in the field. The document lists some popular tools that can be used for curation like Pinterest, Paper.li and Storify. It emphasizes that curated content should have a clear purpose, audience and added context. Examples of active curators are provided, as well as potential challenges and additional resources on the topic.