HuskyPup - 6:16 pm on Feb 19, 2012 (gmt 0)
For the keywords I monitor in Google.co.uk 10 out of the top 10 websites are on .com domains. Some are UK companies, some are international, but none of them use .co.uk and they are doing just fine.
I have to completely disagree with this for my widgets.
These days it's a nightmare trying to rank my 18 year old example.com, it's mostly been blown out by .co.uk sites even though it still ranks extremely well in G.com
For some keywords ALL I see are Chinese and Indian .com, mostly directory, sites ranking in the top ten and I have to add UK to the search to find any meaningful G.co.uk SERPs.
Obviously it depends on one's widgets but for me G.co.uk is an awful mess and don't even get me started on US created keyword MFA domains.