Google now supports a new type of markup for multilingual website content.

This new markup should improve the following two scenarios: (a) multiregional websites which essentially use the same content, (example: web pages in English for the USA, Canada and the UK which differ in price) and (b) multiregional websites which use completely translated content, or substantially different monolingual content targeting different locales.

Yasser Ahmed – SEO Specialist

Full Story: http://blog.globalizationpartners.com/new-markup-for-multilingual-websites.aspx