- ad 101 Science & Technology for Amateurs
- Science and other technology subjects for home learning centers, amateur radio operators, and amateur scientists.
- ScienceDaily Magazine
- News about science, technology, and health. Archived stories are filed into ODP categories alongside the links.
- Nye Labs
- Official site with experiments, a "Question of the Week," episode guides, e-cards, pictures and Nye's biography and curriculum vitae. [Requires Flash.]
- Free Video Lectures
- Free video lectures on science and technology topics.
- How Stuff Works
- Contains tutorials on a wide range of subjects for people interested in learning the mechanisms of how things work.
- The Mad Science Group
- Corporate headquarters of company offering interactive science entertainment for children ages 5-12 through parties, theatrical shows, school and camp workshops and after school programs. International franchise opportunities.
- Science Learning Network
- Community of educators, students, schools, science museums and other institutions demonstrating a new model for inquiry science education. Includes a variety of inquiry posed problems, information, demonstrations, and labs.
- Fun to read science facts and trivia presented in a very pleasant manner!
- The GLOBE Program
- Global Learning and Observations to Benefit the Environment - involves students from over 80 countries in collecting local environmental data. Observations are shared between schools and with scientists via the Internet.
- Science Books Online
- Links to free science e-books, textbooks, lecture notes, monographs, and other science related documents.
- Volcano World
- Brings modern and near real-time volcano information to school kids.