gnowledge
http://www.gnowledge.com/?AspxAutoDetectCookieSupport=1
Gnowledge is a site where anyone can create, publish and share assignments, texts and exercises for free. It can also be used to take and create tests
It could be useful for education because students could use it to help them study
It could reduce barriers for learners who struggle to learn things orally as oppose to visually or those who learn better independently because they would be able to visually organize information on their own at home.
There is no required age of users for gnowledge.
