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 ...

Would researchers scrawl notes, critiques and comments across online research papers if software made the annotation easy for them? Dan Whaley, founder of the non-profit organization Hypothes.is, ...