Possible Duplicate:What are the SEO rules for HTML 5? Will using HTML5 semantic markup negatively effect my search rankings? I have read that using properly semantic markup, besides a general best practice, is also a white hat SEO technique. However since HTML5 is not quite yet finished, is using an element such as  and  going to cause a penalty in search rankings?
New HTML5 elements and search engine ranking impact?
seo;html5