We’ve had social bookmarking tools like delicious for a while now, but a new site called Diigo is adding some more features to the concept. Diigo allows you to highlight, bookmark and comment on live web pages. Have a paper where you are doing some research on a website? Login to Diigo and you can highlight and take notes right on the page. Then every time you come back, you can see your notes and save yourself some time. There are also educator accounts for professors and students so that your teachers can highlight and write notes on a web page and have a class look at that information. They call it “social bookmarking 2.0.”
(Paul Proces)