I think that's the idea behind answers.com ask.com and instructables.com and wikipedia. People have a lot of free time, hackers included. I think a central hub where senior hackers can teach younger hackers is a noble and profitable idea.

So receiving content for free will be the easy part.

The hard part will be sorting through the 50 entries for how to start programming in Python and the 5000 entries for best text editors to use.