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Thank you both for your good answers!

If you were "GOOGLE" would you have 3rd party factors as part of your ranking algo ? I wouldn't. I wouldn't want my business success to depend on 3rd party performance in this case "facebook" What happens to google algo, if all of a sudden one day there is no facebook. ? or facebook changes the way they do business, who follows who here? Just sayin ! cheers,

Thank you!

Hi Sebastian, Having duplicate content is quite a problem for you. You have two pages with the same content and different inbound links profile, confusing the search engines with it. Resolving this issue (with a canonical or a 301 redirect) will point out the page you are targeting from the two and make it easier to compete with. 301 or a canonical will also provide the link juice flow from one of the pages to the other one. 1. Do you have an idea why the with www version is not indexed?  2. How long does Google usually take to change the version in the index? 3. Do I risk my site to be thrown out of the index for some days untill the change is made? 1. If you would be a search engine and see duplicate content from the same provider would you index both? 2. I would say that after resolving this issue, create a Google Webmaster Tools account, submit your sitemap and you should see some change in a few days. 3. After Google will index your canonicals you will have the non-www deindexed and the www version indexed. Now probably you will see some kind of fluctuation in this process, but after done you should see a comeback soon. Google won't punish you after you make these changes to help them. Quite logical, right?! I hope it was helpful, Istvan

Thank you... There is no google webmaster account made yet , so i think nobody defined the "without www version" to be cannonical or so so far. If I follow your advice - will google replace the without www page in the index with the www version immediately or will the site be off the index temporarily?