This: http://mentorapp.org/

For me this was a potential solution to one of the fundamental problems with education: it is full of unchallenging, unrelated-to-life, contrived tasks. When any process (creative writing, math, coding) is harnessed to a fascinating, meaningful-to-students goal I believe you get motivation. And creativity.

So this service would just help mentors and apprentices in all sorts of fields find each other.

This idea was originally inspired by Dr. Tae's presentation:

"Building A New Culture Of Teaching And Learning: Why is skateboarding a better model for education than school?"