Diigo — Learning & Classroom Tool

Diigo is still a valuable research and annotation tool, especially for people who actively collect, tag, and revisit web content rather than just read it once.

Diigo is a bookmarking, annotation, and knowledge-organization platform. Its official positioning emphasizes collecting links, highlighting pages and PDFs, annotating content as you browse, and organizing saved resources for later research and learning.

You can use Diigo for web research, reading annotation, teaching resources, literature collection, bookmark organization, shared reading lists, and knowledge curation.

• Save and tag bookmarks for organized retrieval
• Highlight and annotate web pages and PDFs
• Useful research and reading workflows for knowledge capture
• Group and sharing features for collaborative curation

• Excellent for active web research and annotation
• More purposeful than a plain bookmarking tool
• Useful for educators, students, and heavy readers

• Interface and workflow style can feel older than newer tools
• Best value appears only if you are disciplined about collecting and revisiting notes
• Less polished for formal citation workflows than academic reference managers

Diigo is best for students, teachers, researchers, and knowledge workers who annotate and organize web reading as part of ongoing work.

For related research workflows, compare Diigo with Zotero, Flipboard, and Notion.

Is Diigo only a bookmarking tool? No. Annotation and organization are major parts of its value.

Who benefits most from Diigo? People who actively build and revisit a research library of web content.

June 27, 2026.