Google released a fairly lengthy PDF covering many areas of Search Engine Optimization. This is a very exciting release by Google because it pulls back the curtain a bit on how Google works. Now that this document has been released, it would be silly to do anything different than this document suggests. Google is literally telling us how to optimize our websites for it's search engine.
If you want to see the document, you can download it from the Web4u web site. Google SEO TIPS
Enjoy the reading.
If you need any help implementing the content. You know where to turn.
Web4u Web Design