HuskyPup - 8:21 pm on Feb 21, 2011 (gmt 0)
Huskypup - I am assuming here that you mean when you search google.co.uk then your uk hosted .co.uk domain outranks your .com, and also that both your .com and .co.uk are hosted in the UK.
And interestingly my .cn and .in sites are hosted in the UK but rank extremely well in their local SERPs.
So we could be saying here that the .co.uk engine has maybe increased its "anti .com" dial (not a nasty thing but a logical one).
I've been wondering that for quite a while now after studying what my .co.uk sites have been doing in Google UK and the even more bizarre Google UK .com results, they're just crazy for my stuff.
I test my SERPs using this [google.com...] and also using the Firefox Google Global plug-in.