Google SEO report card

Recently Google emited this document named Goole SEO report card to improve Google’s product pages. If implemented, these improvements could:
- help users find our pages more easily in search engines
- fix bugs that annoy visitors and hurt our pages’ performance in search engines
- serve as a good model for outside webmasters and companies
They reviewed the main pages of 100 different Google products across a number of common SEO topics. The results are here: Google-seo-report-card, followed by a discussion of each topic.