This reminds me of a Ted Talk I saw a while back that really stuck with me. The guy's brother was diagnosed with something and he created a site for others to p

This reminds me of a Ted Talk I saw a while back that really stuck with me. The guy's brother was diagnosed with something and he created a site for others to post and track their treatments and also review others' treatments and outcomes. I tried searching for it but can't find it. Love the idea! It's nice to see that YC gives these niche greater good startups a chance.