SEO Blog

Rand Fishkin and Jeff Pollard from SEOMoz.org have released a 2007 Search Engine Ranking Factors Guide. Built on the collaborative wisdom of 36 search marketing experts, the guide references various elements or techniques found within five general areas of SEO knowledge.

The guide lists the 10 most positive and 10 most controversial ranking factors, adding a shorter list of the Top 5 negative factors. Contributors were asked to rate positive and negative SEO factor on a scale of 1-5 (with 5 being strongest). An added feature measures the level of agreement between all respondents. Comments from contributors can be found beside each factor.

According to the 36 experts, the Top 10 Positive SEO Factors are:

1. Keyword Use in Title Tag
2. Global Link Popularity of Site
3. Anchor Text of Inbound Link
4. Link Popularity within the Site’s Internal Link Structure
5. Age of Site
6. Topical Relevance of Inbound Links to Site
7. Link Popularity of Site in Topical Communities
8. Keyword Use in Body Text
9. Global Link Popularity of Linking Site
10. Rate of New Inbound Links to Site

The Top 5 Negative Factors are:

1. Server is Often Inaccessible to Bots