Establishing broad niche authority with a silo site is possible for now.
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This guide would get multi tiered structure up inside an hour and either free (of you have your own content) or for under $100 if you outsourced it.
While this doesn't set out to be the definitive guide to the subject, it does show you the basics in about 7 minutes - hopefully enough to decide whether this form of key-phrase on-site silo is for you
