Facilitating the Social Annotation and Commentary of Web Pages

By Stephen Downes - Stephen's Web. Facilitating the Social Annotation and Commentary of Web Pages
The idea behind digital annotation is that readers of a web page or document can place comments into the context of the article, like footnotes or marginalia, rather than at the end. It's a good idea and as you read this article you'll see how much thought has gobe into it over the years. More...