I found this article - Q&A with Google people - it is not spectacularly interesting, but it gathers a lot of info into one place.
http://www.labnol.org/internet/google-answers-seo-questions/13731/
Careful how you read it. There are a lot of links in and amongst the text - they can be hard to spot, dark blue vs black.
http://www.labnol.org/internet/google-answers-seo-questions/13731/
Careful how you read it. There are a lot of links in and amongst the text - they can be hard to spot, dark blue vs black.