- A Tour of Digital Libraries for E-Learning
- University Repository
- Public’s Library and Digital Archive
- Textbook
- Open Book Project
- WikiBooks (Multi-Lingual)
- Modules and Tools
- MathTools
- Humanities
Project Gutenberg (Multi-Lingual)
- Bartleby
- Speciality Collections
Cervantes Digital Library (Multi-Lingual)
- Golden Age Spanish Sonnets (Multi-Lingual)
- Comedia (classical Spanish Theater) (Multi-Lingual)
- Dmoz
- Dmoz (Multi-Lingual)
Cylinder Digitization and Preservation Project Web site
- MultiMedia
University of Illinois Library
- Multi-Subject
- Reference Work
Translation Dictionary (Multi-Lingual)
OneLook MetaDictionary (Multi-Lingual)
- National Digital Libraries
- Scientific Digital Libraries
- Scielo (Brazil)
- Science, Math & Tchnology Education
- National Scientific Digital Library
- Level III Digital Libraries
Data Libraries with Toolbench
Geographic Information Systems
- Visualization Tools
- CyberGeography