ef1cdf87_Factors_2007___Quick_Reference__Consensus
[#] 35 [Type] Site [Factor] Historical Performance of Site as Measured by Time Spent on Page, Clickthroughs from SERPs, Direct Visits, Bookmarks, etc. [Importance] Medium [Consensus] 
Somewhat
Y e s
S o m e w h a t
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Search Engine (SEO) Ranking Factors 2007 - Quick Reference
Consensus