Search ranking factors

This document represents the collective wisdom of 37 leaders in the world of organic search engine optimization. Together, they have voted on the various factors that are estimated to comprise Google’s ranking algorithm (the method by which the search engine orders results). The result is a resource of incredible value – although not every one of the estimated 200+ ranking elements are included, it is my opinion that 90-95% of the knowledge required about Google’s algorithm is contained below.
In addition to the ranking factors, at the very end of the document are the results of 4 questions I asked the panelists regarding search rankings at Google. Since I had the attention of such distinguished folks, I couldn’t resist getting a few more valuable answers.

Top 10 Positive Factors
Keyword Use in Title Tag
Anchor Text of Inbound Link
Global Link Popularity of Site
Age of Site
Link Popularity within the Site’…
Topical Relevance of Inbound Lin…
Link Popularity of Site in Topic…
Keyword Use in Body Text
Global Link Popularity of Linkin…
Topical Relationship of Linking …