Someone posted there might be a website that can pair up mom - here is one that I will use when I am ready to donate www.milkshare.com
I have over 500oz frozen and while I am trying to rotate through I make more than I am using so eventually I will donate. I know it's a crazy amount, I was terrified of loosing my supply when I went back to work so I pumped so much in addition to nursing and thankfully I pump more than he eats at day care so at some point I will be donating.