I know that several members are researching their Irish ancestry. Earlier this year the Irish Genealogy Web Site was relaunched with an improved search facility and includes the following data.
Church records
1901/1911 Census records
Tithe Applotments
Soldier’s Wills
Griffith’s Valuations
Ireland - Australia Transportation database
Military ArchivesIt is continually updating its records.
Ellis Island
National Photographic Archive from the National Library of Ireland
The site also gives valuable information about Irish research in general and has links to other related sites. It you have any Irish connections this site may well answer your questions.