Evercome_Shathees - 11:07 am on Jan 11, 2012 (gmt 0)
I have learnt following things from Google blogspot. Hope I am Correct
1. We can use same url for showing different language content. There is no duplicate content or URL issues.
2. Using Google Translation page option will not be indexed on search engines
3.We need to use canonical tag only when we use different url for display the same content(for ex: yoursitename/en and en dot yoursitename.
4.Webmasters should use UTF-8 encoding, if they go for non-english language
5.So, When we go for multi-lingual Optimization optimize site url according to your specific country. For Ex: Thai sites, use following URL formates
yoursitename dotcom/th (or) th dot yoursitename