Written by Dave Bolger -
Dave Bolger's, "Looking for James and Ellen - a Genealogical Journey" is an on-line book in PDF format, The book detains his search for his great-grandparents in Ireland. As Dave says, it deals with the starts, false starts, and mis-steps in the hunt. It makes very good reading for anyone with ancestors in Ireland, and may help you to find information on your ancestors by showing you the path.
You can view the book at:
http://www.islandregister.com/looking for james and ellen.pdf
You must have Adobe's Free Acrobat Reader installed on your computer. To download the reader if not already on your machine, go to http://get.adobe.com/reader/