While working on the Philalethes E-Bulletin Online Reader, I came across a useful web-based annotation tool called Hypothes.is. It’s worth checking out. The tool uses a browser plugin to provide a number of cool features.

Hypothes.is Logo

  • Annotation
  • Discussion
  • Tagging
  • Sharing
  • Privacy Control

It also provides an annotation stream that allows you to view public annotations as they’re being made all over the web.