I have a few sites that have a lot of their serps changing to supplemental results. These very same sites are having a lot of their pages deindexed. My question is whether interlinking would cause this or are there other reasons? I have a decent amount of backlinks for each. I think alot come from interlinks plus coop links. I have no idea what is going on. At first I thought that I had a dead link somewhere and it was causing it but that cant be it. thanks.