开眼界了！
A)Keyword Use in Title Tag (4.9)
B)Global Link Popularity of Site (4.5)
C)Anchor Text of Inbound Link (4.4)
D)Link Popularity within the Site’s Internal Link Structure (4.1)
E)Age of Site (4)
F)Topical Relevance of Inbound Links to Site (3.9)
G)Link Popularity of Site in Topical Community (3.9)
H)Keyword Use in Body Text (3.9)
I)Global Link Popularity of Linking Site (3.7)
J)Topical Relationship of Linking Page (3.6)
再加一句：
The biggest mover is clearly “Global Link Popularity” – which fits very well with evidence we’ve seen of sites like Wikipedia and other authorities dominating the SERPs. It’s also interesting to see “Primary Subject Matter of Site” dropping out, another endorsement of large authority sites ranking for terms and phrases often unrelated to their primary topic. Internal link popularity, anchor text and topical popularity have all remained relatively consistent, but “Age of Site” is a new entrant to the top 10 (despite my personal opinion that it’s been important for the last 3 years).
For me, this is one of the most valuable documents on the web for determining how to approach an overall SEO strategy. While the factors may not be perfect, they give a remarkably concise and trustworthy view of what makes a site rank well at Google.
PS:本文部分亦适用于南阳百度搜索。