Possibly the swiftest route to your roots.
Irish genealogy website directory.
www.thewildgeese.com/pages/cwpghome.html
Description:
The term Scots-Irish or Scotch-Irish came into vogue during the mid-nineteenth century, when The Great Hunger drove thousands of Irish Catholic immigrants to the United States . Protestant Americans whose ancestors had come from Ireland, usually from the province of Ulster, began to use the term Scots-Irish for themselves. Despite the many generations of their families that may have lived in Ireland before emigrating to America, and some had been there for more than two centuries, they did not want to be associated with the persecuted and vilified Irish Catholics. The actual point of this new racial designation was, "Yes, we are from Ireland, but we aren't Catholic." The fact that the Celtic Scots originated in Ireland makes this Scots-Irish label all the more meaningless, but this designation, born in prejudice, is now ingrained in genealogical nomenclature.