Diigo
About Diigo
Diigo is a multi-tool for personal knowledge management.
Dramatically improve your workflow and productivity.
It is easy and intuitive, yet versatile and powerful.
Add Diigo and the Diigolet to any browser.
https://www.diigo.com/tools/diigolet
Diigolet
Diigolet is a bookmarking tool. Click on Diigolet from your bookmark bar and a drop down window will open that allows you to highlight, add stickies, bookmark and share any website.