In February the W3C approved recommendations to enable annotation on the web. There is a long lineage of annotation tools that enable readers of the web to write comments that overlay content and ...

In the early 1990s, the creators of Netscape apparently built a function that enabled each web page to be annotated by those visiting it, as a way for viewers to discuss the page's content. But ...

Earlier this year, a group of climate scientists were outraged about a Wall Street Journal editorial. In an earlier era, they might have written a letter to the editor, or meekly submitted their ...