Below are some of the major collections of Celtic and Irish materials on the web. If you know other useful material that is not on this page, let me know and I will link to it.
Celtic Studies Resources
Gaelic and Gaelic Culture
The Celts & the Six Celtic Languages
General Celtic Information
Interactive Map of Ireland
The Encyclopaedia of the Celts
Athena Review: Guide to Archaeology on the Internet
Stone Pages: Stone circles, dolmens, standing stones, cairns, barrows and hillforts
A Shade of Tain: Revisiting an Irish Epic, by Athena Segada
The Cattle Raid of Cooley
The Story of MacDatho's Pig
Tir na Nog An Irish virtual cafe
Chrys' Celtic Page
The Sacred Fire This site describes itself as "A Celebration of Ancient Celtic History and Lore."
Gaelic Language Info
Three Geese In Flight Books A very good rare Celtic Book Store.
The Celtic Lady's Index Celtic art & jewelry
New Jersey Irish Network
The Philadelphia Irish Network
Kinsella Homepage. Be it ever so humble, there's no place like home.