I have been doing genealogical research on my family for the pass few years. Doing this time I have gathered a lot of data and a few tibbits. I have put my HERLIHY & GOULDING Ireland Birth Index online because they are my main Irish surnames. But I have research other Irish surnames in Ireland and New York City. See my pedigree at http://home.att.net/~genfiles/Pedigree/drucifer.html. 

On Ancient Irish History by Ann Morrison Fisher (70057,1323@compuserve) just points out how confuse everyone is regarding the Enchanted Isle.

Ireland Timeline covers from 6000 B.C. to 1948 in very simple terms.

Tables of Irish emigration to United States.

A simple course in Gaelic

Some common Irish Surnames in United States

Before your start your Irish research, you must know how Ireland is divided into baronies, poor law unions, dioceses, probate districts, civil parishes and townlands.

A book that is design for North Americans doing research on Irish ancestors is Ireland: A Genealogical Guide for North Americans by Kyle J. Betit and Dwight A. Radford. Click here to read the review.

And when you know what to look for, this is where you look.