I've been looking for a brand name for a new UK site. I came up with a name I'm happy with and the .co.uk was available so I got it. The .com is taken by a someone in Singapore and they appear to be a very small operation. No UK limited companies by this name, no UK or US trademarks. The .com owners appear to have the twitter account and facebook page in the name. Do I carry on with the .co.uk or choose something else?