Whilst there may be some justifiable concerns about the place of Khan Academy in the learning ecosysem, it has a vital role to play. It is accessed by hundreds of thousands, if not milllions.. Additional funding means it can expand its reach to include arts and humanities in addition to its core STEM resources. Smarthistory is a good example of how this can work: http://smarthistory.khanacademy.org/
"Much as Wikipedia draws its content from a large number of volunteer professionals, the curated content system for Khan Academy will look to provide a similar outlet for dedicated professionals to develop quality instructional content."
Via theo kuechel