Collegiate Lower School

- 4 2 eXplore (thematic pathfinders)
- Adventures of CyberBee
- SoftSchools.com

- American Library Association
- Carol Hurst's Children's Literature Site
- Children's Book Council
- Children's Literature Web Guide
- Fact Hound
- International Reading Association
- National Education Association's Read Across America
- Read, Write, Think
- TeachingBooks.Net
- The Write Source

- National Council for Teachers of Mathematics (NCTM)
- WebMath.com

- National Audubon Society
- National Park Service
- National Wildlife Federation
- Ocean Institute
- National Science Foundation
- National Science Teachers Association (NSTA)
- Red List of Threatened Species
- U.S.Geological Survey (USGS)

- KidsEcon Books
- Economics Links (@Powell Center Website
- History Channel
- Library of Congress
- National Council on Economic Education (NCEE)
- National Council for the Social Studies (NCSS)
- National Geographic Society
- PBS/ History
- Powell Center for Economic Literacy