Useful Genealogy Websites Huge collection of databases, trees and messages Some searches are free, others require a subscription The Internet's Oldest and Largest FREE Genealogy Community A genealogy site about surnames. Provides origins, web page links, home pages, resource centers, and a  patented search system.
Family Tree Maker Site Site for users of the Family Tree Maker software. Some sections open to everybody.
The WorldGenWeb Project The WorldGenWeb Project is a not-for-profit volunteer genealogical organization dedicated to the free access of genealogical information by anyone in the world.  Their mission is to have every country in the world represented by an online website and hosted by researchers who either live in their own country or who are familiar with their country's resources.
Ellis Island Has records on many Cavanaghs, Kavanaghs etc. LDS Genealogy web site.
Irish Family History Foundation Free to register and search, images are 5 Euro each to view. Currently has records (some partial) from 26 counties
Irish Genealogy Free site, sponsored by Irish government. Parish records from Counties Carlow, Dublin, Cork and Kerry. Not yet complete but a great gowing resource
Ask About Ireland Griffiths Valuations with maps - free.
Fáilte Romhat Great site with easily searchable Griffiths index and much more
Irish Genealogy Project All Ireland volunteer project providing a range of transcriptions and other genie goodies