Rand Fishkin knows how valuable it is for a Web site to rank high in a Google search. But even this president of a search engine optimization firm was blown away by a proposal he received at a search engine optimization conference in London last month, where he was a panelist. The topic -- Can a poker Web site rank high on a Google search using purely white hat tactics -- meaning no spamming, cloaking, link farms or other frowned-upon "black hat" practices. Fishkin answered yes, provided the site also added other marketing techniques and attracted some media attention.

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