Is the same content posted under different TLDs a problem?

If you have 4 or 5 TLDs (top level domains) with the same content, then Google will only display the content of one on its results pages.

So if you are marketing in different countries and put similar content on websites with different extensions such as .co.uk., .com.au ., .ca Google would understand and not regard this as spam or a duplication problem.

 

Matt Cutts GoogleWebmasterHelp Video May 2011