Alfredo De Pietra - Celtic Fingerstyle Guitar: In Italian and English about Celtic music and Celtic fingerstyle guitar. Includes links.
Celtic Fingerstyle Guitar: An article on Irish and Scottish music on guitar, with bibliography and discography.
Celtic Guitar: Article on the use of guitar in Celtic music, by Cliff McGann (originally published in Celtic Heritage); includes notes on significant performers.
Celtic Guitar Talk: A forum for guitar players interested in traditional music with a Celtic flavour.
DADGAD Tutorial: An article on Celtic guitar and arranging tunes in DADGAD tuning.
Glenn Weiser's Home Page: Information on Celtic fingerstyle guitar from a New York guitarist; includes tablature, articles, discographies, and details of books and lessons.
Irish Guitar: The guitar in traditional Irish music; includes tabs, scores, tips and listing of resources.