Internet Archive is an online library that offers permanent access for researches,scholars, people with disabilities, and the general public to historical collections that exist in digital format.
2- Project Gutenberg
3- Federal Resources of Excellence
This is a platform provided by the United States government that offers excellent educational resources pertaining to a wide range of subjects
4- British Museum
The British Museum allows users to learn and discover more than 500 Museum objects and have access to some awesome adventure games and many more.
5- School Forge
6- Dyscover
Dyscover is a software system designed to help children with learning disabilities. It can be used to teach characters, numerals, pronunciation, word-association and many more useful and creative things.
7- KidsKnowIt
KidsKnowIt provides the highest quality educational activities, products, movies, music, games, articles, text books, learning programs, lesson plans, worksheets, and distribute them completely free of charge.
8- Language Games
This is a great website that offers games that can help students acquire foreign language skills.