Top 10 Positive SEO Factors
1、Keyword Use in Title Tag 4.9
2、Anchor Text of Inbound Link 4.4
3、Global Link Popularity of Site 4.4
4、Age of Site 4.1
5、Link Popularity within the Site’s Internal Link Structure 4.0
6、Topical Relevance of Inbound Links to Site 3.9
7、Link Popularity of Site in Topical Community 3.9
8、Keyword Use in Body Text 3.7
9、Global Link Popularity of Linking Site 3.6
10、Topical Relationship of Linking Page 3.5
以上排名是相当具有权威性的，最后面的数字是相关度，详细的请见http://www.seomoz.org/article/search-ranking-factors。
