] High rankings on SERPs (Search Engine Result Pages) are
] more and more dependant on weighted link popularity.
] Content is still king, but two pages carrying the same
] valuable content can rank #1 and #300 depending on their
] link popularity.
]
] This article describes the model of a 'Niched Hub',
] designed to boost the link popularity of money making
] content rich sites using 'natural linking' compliant to
] the search engine's policies. It can be applied to an
] isolated empire and environments of tens of thousands of
] participating sites owned by a bunch of webmasters as
] well.
]
] A 'Niched Hub' is not a spider trap. In fact the design
] avoids all known link patterns the search engines dislike
] and penalize. It works like old fashioned 'manually
] driven' link exchanges, using linking structures which
] reflect the real net.

Great article

Niched Hubs - Boosting Link Popularity with Natural Linking