Felipa, a useful site for dead links is archive.org. If ever you come across a dead site, there's a decent chance it's been captured there.

For the link Jim Dixon posted:
Clár Cinn le hÁine Cooke

Links by Philippa:
Gun Tàmh - Am Buachaille Bàn
Crosswinds - Am Buachaille Ban

The link from GUEST,an bhean úd thuas:
A little bit of Culture - An Buachaill Bán - Séan Ó Coiléan