Do you mean surveys that have been published online? If they are there with the blessing of the copyright holders then that's fine but please don't link to any pirated content.
I suspect that most pirates don't actually announce that they are acting illicitly, so how would a poor innocent wiki editor know?
NB Every survey show on the UBSS website, either via the survey archive page or within a paper in our Proceedings. Is there with permission of the copyright holders, so feel free to link.