- Mind Research Institute
- Family Education Network
- Inspiration Software
- FunBrain
- Prentice Hall
- Allyn & Bacon
- Longman Publishing
- Addison Wesley
- ClassLink
- Teacher Vision
- HomeSchooler Network
- Reuters
- NovaNET
- KnowledgeBox
- Renaissance Learning
- Scholastic
- EduSmart
- CoSN
- SIIA
- EduComp
- WRC Media
- Education Research Development Institute
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