Before anyone points out that we do list multiple sites belonging to the same company, I would add that the guidelines are concerned with related sites with similar content. So phones-4him and phones-4her and related anything-to-do-with-telephony sites would all be covered by that. If a business has diverse areas of operation, telephony on the one hand, china teapots on the other, then we'd look at both sites, no guarantees on either though. If they also put up the definitive informatational site on the history of the telephone we'd look at that too.