Here is a very interesting TED talk by Richard Baraniuk about the vision behind Connexions, his open-source, online education system.
Imagine a world without textbooks in schools. Knowledge would be shared and modified for various courses. The materials would be online, free and accessible for the entire world. Welcome to the knowledge ecosystem!
This talk is a few years old, which means much of what Baraniuk is talking about has and will continue to transform the traditional classroom experience. Resources like Flat World Knowledge already exist to share textbooks and course materials with college students.
How has (or will) open-source learning made an impact to your learning environment?