Cyndi's List: Surnames, Family Associations & Family Newsletters Index (worldwide)
http://www.cyndislist.com/surnames.htm
Genuki Surname List: homepage from which to start researching surnames in England, Wales, Scotland and Ireland
www.genuki.org.uk/indexes/SurnamesLists.html
Devon Surnames List (a list of persons researching various surnames in Devon with their email addresses). The previously existing Devon surnames list has been permanently withdrawn. An alternative service is now available at http://www.users.on.net/proformat/engnames.html
Information on how to Research specific surnames on the Internet is on Genealogy Resources on the Internet webpages maintained by Chris Gaunt and John Fuller, at
http://www-personal.umich.edu/~cgaunt/beginner.html
Family Tree Maker Genealogy Site Home Page – to search surnames
http://www.familytreemaker.com
Rootsweb Surname List - Lists of persons researching various surnames worldwide, with their email addresses; access through: http://searches.rootsweb.com/
Rootsweb Surname Helper - http://rsl.rootsweb.com/#search
Surname registries and web sites - http://surhelp.rootsweb.com/srchall.html
WorldConnect, a GEDCOM-based project launched by Rootsweb. You can search for surnames loaded onto the project website by Rootsweb users
http://worldconnect.genealogy.rootsweb.com
A list of different surname mail-lists on Rootsweb to which you can subscribe, is at: http://lists.rootsweb.com/index.html
Sites associated with the software program Family Tree Maker - you can search for surnames and family trees loaded into these sites.
http://www.genealogy.com