affilate

Hey, how are you guys? I've just started a youtube channel a few weeks ago and i have soooo many question and i'm seeking your help. First of all, what is youtube affiliate program? Does it have anything to do with their copyright policy? How does it work? What are the pros and cons? Second...

What do youse think about Amazon's affiliate program, Amazon Associates? I am a member of it and earned £11 odds so far, not enough to do a withdrawl yet :P Has anyone hear earned of good money from it from their channel / videos? (or at all infact?)