At its core, content curation is like a great editor or blogger who brings his unique taste and understanding of his target audience to his selection of the best content for his readers.
He provides context for the content so that it’s more than collection of information.
Content curation defined
Content curation chooses the most relevant, highest quality digital information to meet your readers’ needs on a specific subject. It involves a process of assembling, categorizing, commenting and presenting the top content. This digital content can be in one or more formats such as text, blogs, feeds, images, video and presentations....
[Good overview, curation tips ~ Jeff]