The Irish Manuscripts Commission - Digital books

The Commission has digitised many of their out of print publications and made them freely available online, all fully keyword searchable. A small example of what is available includes: 
• Registry of Deeds Dublin abstracts of wills - volume 1, 1708-1745; volume  2, 1746-1785; volume 3, 1785-1832
• A Census of Ireland circa 1659
• Guide to Irish Quaker Records
• King’s Inns Admission Papers 1607-1867
• Knights’ fees in counties Wexford Carlow and Kilkenny
• The Civil Survey A.D. 1654–56 county of series - includes Tipperary; Donegal Londonderry and Tyrone; Limerick; Meath; Waterford; Dublin; Kildare; Wexford 
• Books of Survey and Distribution being abstracts of various surveys and instruments to title 1636-1703 - volume 1, County of Roscoon with maps c. 1636 of the baronies of Athlone and Moycarnan and of parishes in Ballintober; volume 2, County of Mayo with maps of the county from Petty's Atlas 1683 and of Tirawley barony from the Down Survey 1657; volume 3, County of Galway with map of the county from Petty's Atlas 1683; volume 4, County of Clare reproduced from the manuscript in the Public Record Office of Ireland with maps