Check out the information page here:
And the Facebook page here:
There's not much a mere individual can do - but maybe, just maybe if we all scream loud enough we can get enough government and official buy-in to engage with the Asian nations to where the horn is illegally trafficked and sold on the black market to do something constructive and decisive about it.
I for one don't want my children to have to resort to viewing my photos or going to the zoo in order to see a real live rhino. I want to be able to show them these magnificent creatures in their natural habitat in a wild and free environment.