The transcript of the Herald's Visitation of Dorset in the year 1623 is available for online searching on Ancestry

• The College of Arms website. "The College of Arms is the official repository of the coats of arms and pedigrees of English, Welsh, Northern Irish and Commonwealth families and their descendants. Its records also include official copies of the records of Ulster King of Arms the originals of which remain in Dublin." The College publishes a quarterly online newsletter.
• Additional information is provided by the Society of Genealogists' Information Leaflet: "The right to Arms" (SoG members only).
• The College of Arms, London, by Colin Meays.
• The College of Arms Foundation, Inc. - "The Foundation ... promotes knowledge of, and interest in, English heraldry in the United States."
• The White Lion Society - A Society of Friends of Her Majesty's College of Arms.
• Heraldica, Franois Velde's Heraldry Site, has some very interesting material on British Heraldry.
• "Pssst! Want to Buy Your Family's Coat of Arms?" (archived copy) by Dick Eastman exposes the tricksters who operate in shopping malls and on the internet.
• Heraldry - from the Notes on Medieval English Genealogy website.
• A Glossary of Terms Used in Heraldry - transcription of the book by James Parker (1894).
• Pimbley's Dictionary of Heraldry - archived copy from Google.
• How to Read a Coat of Arms (archived copy)- from the Cheshire Heraldry website.
• The Heraldry Society website.
• Regulation of Heraldry in England, from Heraldica.