[blam]

The best book I've read on this subject:

Origins Of The British

I'm an R1b (male) from Ireland with a marker from Denmark....maybe a Viking? My female DNA is 'V', probably Skolt Sami of northern Finland.

[ccmay]

Another interesting read on the same topic.

According to this guy, my "English" blood is something like 70% Celtic. The Anglo-Saxon, Viking, and Norman contributions to the English gene pool are much smaller than commonly believed.