Everything helps. Before Amit's illness blew up, I wasn't even aware that there was such a thing as a marrow registry or that it was actually pretty simple to donate compared to other organ donation programs, many of which require you to face huge risk or being dragged in a bag. Just let people know occasionally. I feel your frustration at the great masses that fall through the cracks, but if you can get just a few people to sign up for the registry, there's a good chance that one of them could someday save a life and you'd be part of that, too.