Possibly the swiftest route to your roots.
Irish genealogy website directory.
Founded in 1962, the Irish American Cultural Institute (IACI) is the leading Irish American cultural organization. The IACI is a federally recognized 501 (c)(3) not-for-profit national organization devoted to promoting an intelligent appreciation of Ireland and the role and contributions of the Irish in America. The IACI is strictly apolitical and nonsectarian, and is the only Irish American organization that has as its patron, The President of Ireland.