http://www.monasticireland.com/index2.htm#sites
Good website called Monastic Ireland. At this link you will find short articles on some sites associated with the early Christian church and the lives of some of the saints from this period
http://www.museum.ie/en/exhibition/list/8-major-pieces.aspx
Eight major artefacts in the National Museum in Dublin from the Celtic period and Early Christian Ireland including the Tara Brooch and the Ardagh Chalice. Click on each entry to see a picture and to read the background for each piece
http://www.glendalough.connect.ie/pages/monastic/monastic.html
History of the monastery at Glendalough
http://news.bbc.co.uk/2/hi/europe/5216320.stm
BBC news report entitled Irish Dead Sea Scrolls in bog about a major archaeological discovery of a manuscript from the Early Christian period in a bog in the Midlands
http://www.snake.net/people/paul/kells/
A number of images from the Book of Kells. Click on the thumbnail to get a larger image