Some blog posts (very few) are so brilliantely written that you know the instant you read them that you'll be seeing links to them for years to come. Such is the case with Mark Pilgrim's post "The Future of Reading (A Play in Six Acts)" which will hopefully teach people an important lesson about copyright, DRM, and the future of authorship online.
Mark does a wonderful job of pulling quotes from a variety of sources. By combining these purloined texts into a logical sequence he delivers a powerful message without actually ever writing a single word that is original (other than the title and section names). Mark's original contribution is all in the selection and sequencing of the texts -- a great demonstration of the power of "mashups"
My only criticism of his piece is that he didn't find a way to quote from Spider Robinson's "Melancholy Elephants."