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Buying and selling text links on high-Page Rank web pages has become big business. Buying good traffic-generating "clean" links is a great alternative to pay-per-click advertising, which confers no SEO benefit. But, there are a number of pitfalls of relying primarily on paid links for SEO:
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The cost of the hundreds of links required for substantial search engine traffic can become prohibitive.
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As soon as you stop paying, you lose your link--you are essentially renting rather than owning, with no "link equity" building up.
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Google is actively trying to dampen the impact of paid links on rankings, as revealed in various patent filings.
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Given Google's mission to dampen paid links' effectiveness, paid link buyers have an interest in verifying that a potential paid link partner is "passing PageRank." But identifying appropriate PageRank-passing paid link partners is quite a task in itself. |
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Google is actively trying to dampen the impact of any "artificial" linking campaign. Having most of your links on PageRank 3 or higher web pages would seem to be a dead give-away that your links are "artificial," since the vast majority of web pages (note: not necessarily websites, but their pages) are PageRank 1 or lower. Meanwhile, buying PageRank 0 or 1 links would have so little impact on a site's PageRank that it would not be worth the expense.
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