A.nnotate.com - Documents Online
A.nnotate.com lets several people annotate the same document or web page with tags and notes. They can reply to each others notes and hold a discussion about any part of the text. All marked text is included in an index for each document and each user making it easy to keep track of feedback from mu... read more
Co-ment.net - Annotation Goes 2.0
One of the more notable attributes of Web 2.0 is user collaboration—sharing. There’s a dynamic of reciprocity. Co-ment brings these aspects into annotation. It leverages collective intelligence in order to implement what is essentially a web based peer review. Users upload documents and text... read more
Annotate the web to your heart’s content with JumpKnowledge, a brand new online notation tool. JumpKnowledge gives its users the ability to note and comment directly on web pages (unlike Google Notebook) whenever a thought occurs to them. Annotated pages can be saved, linked and sent to friends.... read more