Scribd is the largest social publishing company in the world, the Website where tens of millions of people each month publish and discover original writings and documents. On Scribd, you can quickly and easily turn nearly any file—including PDF, Word, PowerPoint and Excel—into a Web document and share it with the world.
CommentPress is an open source theme for the WordPress blogging engine that allows readers to comment paragraph by paragraph in the margins of a text. Annotate, gloss, workshop, debate: with CommentPress you can do all of these things on a finer-grained level, turning a document into a conversation. It can be applied to a fixed document (paper/essay/book etc.) or to a running blog.