There is no “affiliate” option for Kickstarter, and they are already fully funded, so I am sharing this totally just because I think it is awesome!
This is totally late notice, but their is a great KickStarter project that closes March 10, 2016 at 11:59 PST. Hoffman Academy is already pretty great because they offer FREE online Piano video lessons. The Kickstarter campaign is to fund an expansion of their offerings, adding 6 more 20-lesson units, and also to develop interactive games and practice tools that could be accessed through a paid subscription. In their words:
Sure, video lessons are great, but what about getting feedback on your progress? Enter Hoffman Academy 2.0. Our team is currently designing a new interface that will deepen and accelerate your learning through interactive features like music learning games, progress tracking, and personalized practice instructions.
They are offering a special deal for the Kickstarter- a lifetime membership for $250, plus $45 for each additional student. The lifetime membership will include all the additional materials for the existing units (currently $19 each), plus all the stuff they will be developing for “2.0”, which will later be offered for $15/month. They also have lower dollar amounts for limited subscriptions, but the “lifetime” is by far the best deal, especially if you have multiple “students”.
Neither my husband nor I play the piano, but are somewhat musical (choir for me, guitar for him). We’ve both felt we’ve missed out by not being able to play the piano, which is why we got a cheap used piano a few years ago. My kids plunk on it sometimes,and my oldest has specifically stated he would like to learn piano. A few weeks back I had my oldest son test the first lesson, including purchasing the additional materials. It was short, user-friendly, and made me realize how painfully out of tune the piano is, which is why I haven’t had him do more lessons yet. 
The additional materials were a nice way to reinforce & extend the info in the lesson, plus offering something that could go in a homeschooling portfolio!
I signed our family up for all our kids, plus my husband & myself. So five of us could be totally competent on the piano in a few years- watch out VonTrapps!!
