Armstrong Clan Society - Maintains a library, and encourages networking and genealogical research among Armstrongs and those interested in their history.

Appleby - Appleby Research Organization

Ansley - Resource page for Ansley researchers.

Andrews Family Genealogy Forum - Message board for genealogy research categorized by Surnames, Regions, or Topics.

Abecasis - Family history , with news and events plus services for family members; includes associated Abecassis family.

Alley Ancestors - Family history and contact around the world.

Abercrombie - Purpose of the Abercrombie Family Association is to preserve, and promote the exchange of, information on all branches of the family.

Aliphon Family Reunion - An Aliphon Paruit Philippe Family Page

Axtell Family Organization - A repository of all things about the name Axtell

Allchin Files - Details, origins and listings of the family and genealogy of name.

Annals of the Annals - Dedicated to the study of the Annal family, worldwide.

Andrist - Genealogy, heraldry, legends, locations, and meaning of the name.

Autry Family Genealogy - A page with genealogy information on many spelling variations, including Autery, Awtry, d'Autry, Dautry, Outry.

Auvil Family Genealogy - Genealogy, including associated Auville family.

Aylesworth Family - Family history and genealogy back to 17th-century immigrant Arthur Aylworth.

Anstine Family - Genealogy data, family member photos, family activities, reunions, and other items of family interest.

Austill - Biographies, pedigrees and surname list; includes Austell and other variations.

Arbuthnott Family Association - Arbuthnott and Arbuthnot Family Association

Ahronson - Information on the family history of the Ahronson family in England, Canada, the United States, and Australia.

Anning - Connecting the Asurname all over the world. Database by geographical region with contact information.

Ashbaugh Family - Mail list for members of the family, reunion information, genealogy information and links to other sites; includes Eschbach variation.

Atkins - Photos, genealogy, reunion information, and online forum.

Antrim Family Tree - Newsletter about Antram and Antrim families from 1635 Salem, Mass.

Anderton Surname Resource Centre - Researchers list, mailing list, notice boards and database.

Audsley - Surname resources for the Audsley family including variants.

Ahern Family Genealogy - For Aherns of all variant spellings and locations to share genealogical and historical information.

Abernathy - Information for family researchers; includes Abernethy.

Annis Family Association - Research and preservation of family records, plus communication and reunion within the United States of America and Canada.

Adley - Family Search - Searching for descendants, also provides photographs.

Aran, Tarik - Aran Online - Provides the first web presence for the surname across the world.