Originally Posted by Bladewire

1) Are you currenyly throwing a 404 error page on those bad links?

2) What pattern do you see in the URL structure of the links they're sending you?

i.e.

mydomain/1/2/3/badlink.html
mydomain/3/4/4/badlink.html
mydomain/1/random.html
mydomain/random/badlink.html
mydomain/random/random.html
mydomain/?s=random