The National Archives of Ireland (NAI) plans to upload its collection of 19th century census fragments and census search forms on Monday, April 28. NAI’s genealogy website is free: http://www.genealogy.nationalarchives.ie/
Census fragments are surviving pieces of the 1821/1831/1841/1851 censuses. Fragments is the definitive word; the remaining records come from only a few areas in Ireland. Nevertheless, being able to access the records online will save a trip to the National Archives in Dublin or PRONI in Belfast where the documents were previously searchable on microfilm.
Census search forms are sometimes called Irish pension records. They were documents completed to prove eligibility for state pensions which were introduced in 1908. Census records still existed at that time and could be used to verify information on the application.
Claire Sentry of Irish Genealogy News provides more background details about census fragments and census search forms at: http://irish-genealogy-news.blogspot.com.
The data is to be added to FindMyPast and Family Search at the same time.