Why use a social bookmarking tool like Diigo?
Diigo provides an ideal way to organize research for a paper or to create a new project for class, especially in when in collaborative groups. Maybe the class is to research a particular topic. Each student can bookmark websites they have found to be helpful. Students who are working in groups on a project can create a group and share their research findings. The teacher can require notes commenting on the content and would be able to assess student thinking. The teacher can also make comments and give feedback to students (How to Give Feedback video)
Teachers, mostly of older students, could share articles, blogs, videos, etc. with their students, maybe about current events, or for some other content-related subject. At about minute 3:27 in this video, the author talks about another way teachers can use Diigo. In his example, a teacher can post a website with things highlighted and comments that include questions that the students need to answer about different parts.
Diigo is great for research for teachers as well, as it can contribute to our own professional learning community. There are many groups on Diigo for educators to share and collaborate with each other. Teachers can also create their own groups to share lists. Here is a link to one of my groups: Common Core Math help. My 5th grade partner and I can work on this list together and share great resources to help each other with the math curriculum.