How does Google determine the ranking of blog search results?

Positive factors that benefit a blog:

* The popularity of the blog (fame, obviously the higher the better)

* The number of times the blog link appears in other blogs' "friend links" section (the more, the better; appearing in high-quality blogs is even better)

* Blog articles are categorized using tags (tag)

* The PR value of the blog (the higher, the better)

* The number of RSS feed subscribers for the blog (the more, the better)

* The frequency with which the blog's links appear in emails or chat records (the higher, the better)

* The number of times the blog links (either the main link or article links) are clicked in search results (the more, the better)