Google Sidewiki Alternatives
Google Sidewiki was discontinued by Google, but don't worry we have compiled a list of Google Sidewiki Alternatives:
read and write comments based on website using google+ or facebook.
Annotate with anyone, anywhere Our mission is to bring a new layer to the web. Use Hypothes.is to discuss, collaborate, organize your research, or take personal notes.
Better reading and research with annotations, highlighter, sticky notes, archiving, bookmarking.