Regarding parental attention, the reality is that most parents are extremely busy. Single parents, long commutes, multiple jobs, etc. DnsLearning was primarily created to help parents that cannot afford private schools, tutoring, or moving out of a low income neighborhood. All of these great education sites are competing with very powerful algorithms that are designed to keep users watching video after video. If youtube starts encouraging users to do a few Khan Academy problems before watching the next video, I will consider DnsLearning a total success.