How well does Google do with SEO – Google SEO Report Card
Very interesting article on SEO - looks at the whys and hows of carrying out SEO on your website.
What makes it different - Google have done it on there own site, giving a score for the various aspects and they explain how to improve the results.
The pdf document is very long, but worth a read.
Try http://www.screamingfrog.co.uk/seo-spider/ to review your site - mark