I was having this problem with my current site. I have several domains like

ukwhitegoods.biz

ukwhitegoods.co

ukwhitegoods.co.uk

ukwhitegoods.com

ukwhitegoods.eu

ukwhitegoods.info

ukwhitegoods.me.uk

Even the problem was Google was indexing all these pages separately and which is not good from the SEO perspective. 77 more words