And don't discount the many people visiting who may have been victimized as as child, or know someone who has. This site allows networking between these people, to contact others, including media, and experienced child abuse lawyers. You can't put a price on that, because it's...priceless. And if you still don't believe it, look no further than the 'Occupy' movement, the Arab Spring, or Anonymous. These forms of free social media have brought down tyrannical leaders, and have shaken stalwart institutions to their core. Think, NSA, for example.
But, yeah, the billboard helps too. 😊