Nearly everything that is able to be traced to an interested owner has consent. Where no rights holder can be found, we place a "take down" notice on the site that says we will remove offending material. The only time that has happened was with a limited circulation DX publication. We have an attorney who prepares out letters of consent and guidance. Many early radio publications are out of copyright, and many later ones are totally abandoned. Occasionally the owner of a live copyright will right and ask, "why are you not preserving the publication... I have some in the garage you can have."
