Technorati Ranks TWI No. 1 U.S. Politics News Site

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According to the Personal Democracy Forum,Technorati — a blog search engine which keeps running measurements of the blogosphere — has switched to a new algorithm that takes a more immediate snapshot of a blog’s authority (authorityis “based on a site’s linking behavior, categorization and other associated data over a short, finite period of time”). So, instead of generating its rankings based on six months worth of metrics, as it used to, it’ll look only at the past month — which means rankings in the top 100 can change somewhat radically. On Wednesday, the company’s blog explained:

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“With the new algorithm, the resulting Authority will better reflect the fast-changing nature of the blogosphere. Its new inherent volatility will also show which blogs are rising and falling in authority, rewarding authors on posting frequency, context and linking behavior, as well as other data inputs.”