Diigo

Diigo is a multi-tool for personal knowledge management dramatically improve your workflow and productivity easy and intuitive, yet versatile and powerful. Much of our information consumption and research, whether at home or at work, has shifted online. We are now spending a big part of our day working with online information - reading and researching related to travel, health, shopping, career, hobbies, news, online learning, smart investing, school papers, work projects, you name it.

Save and tag your online resources for easy access anytime, anywhere. Annotate web pages and PDFs directly as you browse online. Organize your links, references and personal input to create a structured research base through Outliner. Share your research with friends, classmates, colleagues or associates.