Diigo is your personal knowledge base. You can dramatically increase your research productivity and collaborate sharing. Diigo is your complete online information workflow management, editing, and sharing solution. You can manage, organize, save, share, and interact with all your online information in one place. Diigo can help you organize your online knowledge. It's easy to store and mark information with tags, organize it through annotations and notes, and then share it with anyone. Annotation tools make it easier to read the web. You can add digital highlighters and sticky note to any device, mobile or PC, and they will always be there when you return.