
Diigo is a comprehensive online tool designed for researchers, students, and lifelong learners to collect, organize, annotate, and share information found on the web. It acts as a powerful bookmarking service combined with robust annotation capabilities for web pages, PDFs, and documents.
Unique Features
- Comprehensive annotation tools for web pages and PDFs.
- Reliable webpage archiving prevents link decay.
- Powerful organization system using tags and lists.