Flyleaf
Specialising in guides for Irish family history research - guides for Cork, Dublin, Mayo, Donegal, Kerry, Longford and for Ireland in general.
http://www.flyleaf.ie

Greenspeak
A book by Paddy Sammon about the Irish language. Includes author blurb and example entries.
http://greenspeak.info

Irish Books and Media
Irish interest and published books from a U.S. bookseller.
http://www.irishbook.com/

Kenny's Bookshop and Art Galleries
New and antiquarian Irish interest books. Contemporary Irish Art.
http://www.kennys.ie/

Killarney Bookshop
Selection of books on Ireland and Irish authors.
http://www.killarneybookshop.ie

The Book Nest
Searchable database relating to Sligo and environs together plus Irish interest titles including Yeats, Celtic and academic books.
http://www.booknest.ie