Mandarin Pronunciation Exercises and Learning Components
learning
Khan Academy
"The Khan Academy is a not-for-profit 501(c)(3) with the mission of providing a world-class education to anyone, anywhere. Despite being the work of one man, Salman Khan, this 1600+ video library is the most-used educational video resource as measured by YouTube video views per day and unique users per month. We are complementing this ever-growing library with user-paced exercises–developed as an open source project–allowing the Khan Academy to become the free classroom for the World."
Instructables
Instructables is a website bought to you by the partners at www.squid-labs.com. We make a lot of stuff, for business, and for pleasure. We’ve been looking for a long time for a convenient system for documenting our how-to projects, and the things we make, but it simply didn’t exist. We decided we’d have to develop it ourself, and here it is, it will evolve as we grow to meet our own rigorous demands, and those of our users. Principal in our demands is convenience – it should take less time to document a project than it did to build it.