And a quote from the editors at The National Review: observations on aggregation.
There isn’t anything inherently wrong with aggregation. On the contrary—unless we expect readers to get all their news from one publication or, alternatively, spend all day sifting through numerous websites themselves—the Web needs aggregators. And smart aggregation does, in fact, add something to the world by bringing a certain editorial judgment to bear on the selection of pieces.
–The Editors, The National Review, behind a paywall: TNR