Open Feedback Publishing - O'Reilly Labs
The Open Feedback Publishing System (OFPS) is an O'Reilly experiment that tries to bridge the gap between private manuscripts and public blogs. OFPS allows readers to read in-progress O'Reilly manuscripts, communicate suggestions with the authors, follow others' comments, and directly participate in the development of new books. Manuscripts developed with OFPS sites allow the authors to publish the in-progress work as whenever they think it's ready for public comment and then update the site with new versions as the text is improved. Authors note sections of the text that they'd like comments on (potentially down to an individual paragraph) and that allows readers on the site to comment on that particular section.