Khan Academy - I point out the demographics in my post. It supports my point. Also note that it's free and a nonprofit, not a VC backed company. Wireless Gener

Khan Academy - I point out the demographics in my post. It supports my point. Also note that it's free and a nonprofit, not a VC backed company. Wireless Generation - They have been around for 10 years and were not profitable at the time of sale. http://finance.fortune.cnn.com/2010/11/23/news-corp-deal-for-wireless-generation-is-great-but-doesnt-make-sense/ http://finance.fortune.cnn.com/2010/11/23/news-corp-deal-for... Zinch - didn't really get off the ground. I know the founder and others on the team. Really great folks doing some great work. Part of the reason they sold is that getting any serious traction and turning it into a large business is going to take many many more years. Put it another way. In the same amount of time that Wireless Generation was founded the rest of the Internet got: Facebook, iOS, YouTube, Wikipedia, DropBox, and much more. There is a big difference between an industry being nascent (as the PC industry was in the 70s) and the fundamental dynamics in the industry creating certain types of companies (as is the case with education and some other industries).