- Math & Science video library: (Khan Academy)
- INTRODUCTION
- Arithmetic
- Pre-Algebra
- Algebra
- Algebra 1 Worked Examples
- California Standards Test: Algebra I
- California Standards Test: Algebra II
- ck12.org Algebra 1 Book Examples
- Differential Equations
- Precalculus
- Calculus
- Developmental Math
- Linear Algebra
- Probability
- Statistics
- Geometry
- California Standards Test: Geometry
- Trigonometry
- Physics
- Biology
- Chemistry
- Organic Chemistry
- Encyclopedia - Wikipedia Selection - Subject Index
- Art
- Business Studies
- Citizenship
- Countries
- Everyday life
- Design and Technology
- Geography
- History
- IT
- Language and Literature
- Mathematics
- Music
- People
- Portals
- Religion
- Science
- Encyclopedia - Wikipedia Selection - Title Word Index
- CK-12 Foundation Books: (CK-12 Foundation)
- Calculus (PDF, 44MB)
- Chemistry (PDF, 51MB)
- Geometry (PDF, 96MB)
- Trigonometry (PDF, 86MB)
- Biology (PDF, 93MB)
- Earth Science (PDF, 131MB)
- Life Science (PDF, 199MB)
- 21st Century Physics (PDF, 37MB)
- Engineering - An Introduction for High School (PDF, 12MB)
- World Literature Ebooks - Books in Digital format: (gutenberg.org collections)
- Adventure Stories
- Africa
- Anthropology
- Archaeology
- Best Books Ever Bookshelf
- Biographies
- Children's Book Series
- Children's Fiction
- Children's Literature
- Classical Era Collection
- Detective Fiction
- Fantasy Collection
- Folklore
- Gothic Fiction
- Harvard Classics Collection
- History For Children
- Horror Fiction
- Mystery Fiction
- Native America
- One Act Plays
- Philosophy
- Poetry
- School Stories
- Science Fiction
- Short Stories
- Libros en Español
- Westerns
- Medical Encyclopedia (U.S.National Library of Medicine)
- Basic Health references: (Hesperian)
- Where There Is No Doctor. A village health care handbook.
- Where There Is No Dentist
- Disabled Village Children
- Women with Disabilities - A Health Handbook
- A Book for Midwives: Care for pregnancy and birth
- Helping Children Who Are Deaf
- Cholera Prevention Fact Sheet
- Sanitation and Cleanliness for a Healthy Environment
- Water for Life - Community water security
- A Community Guide to Environmental Health
- Helping Health Workers Learn
- OLPC Educational Packages: (OLPC Collections)
- Storybooks
- Web Design
- Wikibooks
- Wikislice General
- Wikislice Animals
- WikiHow
- Biology
- Wikislice Chemistry
- Wikislice Physics
- Nature Photographs
- World Culture
- Music Samples
- How to Build Musical Instruments
- y-Bee-See - An interactive ABC picturebook
- A compact multilingual translation dictionary
- UNESCO's IICBA Electronic Library (UNESCO-IICBA)
Teachers resources from the UNESCO International Institute for Capacity Building in Africa