This website has lots of information about the Bouzouki including sections on tuning your bouzouki, type of plectrum to use and how to use it, playing chords, suggestions for learning to play the melody, how to care for your bouzouki and mastering Greek music.
Bouzouki in Irish Music
The bouzouki was first used in traditional Irish music in the late 1960s by Johnny Moynihan and taken up by Andy Irvine and Donal Lunny.
Check out this bouzouki website for more information.
Check out Ireland Roots for researching your Irish Family History.