I have noticed that several of my competitors have more than one website. To the buyer they look like different organisations, with different brand names etc, but they are actually the same organisation selling the same product. Under PPC, they are able to hog the top positions, presumably the thinking being if website A doesnt get the business, then chances are website B, or even C will do. Obviously this hacks me off a bit. Is it frowned on by the PPC providers if they realise and do they take any action if they are alerted to it?