Today, on the office Google Webmaster Blog, Google released their SEO report card which aims help Google’s product teams identify potential areas for improvement in Google’s product pages. Previously only released internally, this report card has been released publicly and includes a great deal of SEO related information.
The summary of the subjects covered include:
It’s a PDF doc; about 49 pages worth of interesting details. I encourage you to take a look for yourself, and you might even want to print it out!