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What do you mean by parent pages? Content that is necessary for users is of use to Google as well. You'd be surprised how much traffic "unimportant" pages bring you because your customers are looking for them! If you can explain some more, I can try to help.

Thanks very much!

Thanks, that's really helpful!

Better yet look at the Linking Domains and Inbound link tool on MOZ. Then you can see what links they have and what you should get to beat them.