How-To Geek is an online portal focused on creating technology related content. ...more

Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education. ...more

Tatoeba.org is a free collaborative online database of example sentences geared towards foreign language learners. ...more

Roblox is a user-generated massively multiplayer online social gaming platform. ...more

Internet Archive is a nonprofit digital library which stores a copy of millions of web page history. ...more

TED-Ed is an online QnA site. ...more

Tutorialspoint provides free tutorials online. ...more

Project Gutenberg (PG) is a volunteer effort to digitize and archive cultural works. ...more