Other useful sites

[LookupUK]

http://www.lookupuk.com

http://www.ukgenweb.com

http://www.locatefirst.com

http://www.genealogyontheweb.com

http://www.lookupamerica.com

[Dennis]

Not sure whether these have been mentioned already, but have a look at:

http://www.curiousfox.com/

http://www.county-surnames.co.uk/index.php

Dennis.