Ireland
http://www.irish-genealogy-toolkit.com/       Free
Guide to finding your Irish ancestors

http://www.census.nationalarchives.ie/       Free
Irish Census 1901 & 1911

http://titheapplotmentbooks.nationalarchives.ie       Free
The Tithe Applotment Books were compiled between 1823 and 1837.

http://www.irishtimes.com/ancestor/index.htm       Free
The Irish Times’ Irish Ancestors website.

http://rootsireland.ie/       $
The Irish Family History Foundationhas databases of parish church records of baptisms, marriages and deaths, census returns and gravestone inscriptions.

http://www.irishgenealogy.ie/en/       Free
Check for church records for Dublin, Cork, Kerry & Carlow.

http://www.askaboutireland.ie/griffithvaluation/index.xml       Free
Griffith’s Valuation lists land owners and tenants (years 1847-1864)

http://failteromhat.com/index_org.php       Free
Check out Irish Flax Growers List (1796); Griffiths Valuation (approximately 1861);Lots of other goodies.

http://www.irish-place-names.com/
The Irish Place Names database is based on the Index to the Townlands, and Towns, Parishes and Baronies of Ireland published in 1861.

http://www.logainm.ie/       Free
Placename Database of Ireland

http://www.igp-web.com/       Free
Ireland Genealogy Projects – volunteer site with various records and cemetery transcriptions and photos. Organized by county.

http://www.ancestryireland.com/       $
Ulster Historical Foundation – focus on northeast Ireland.

http://www.irishancestors.ie/       Some free
Irish Genealogical Research Society

http://www.irishrootsmedia.com/Home       $
Irish Roots Magazine

http://www.ifhs.ie
Irish Family History Society

http://www.hse.ie/eng/       $
Health Service Executive purchase birth, marriage, death certs online 1922 forward

http://www.iar.ie/       Free
Irish Archives Resource – will link you to archival collections throughout the island of Ireland.

http://www.placenamesni.org/       Free
Northern Ireland place-names

https://www.nidirect.gov.uk/proni       Free
Public Record Office of Northern Ireland

https://geni.nidirect.gov.uk/       Some free
General Register Office Northern Ireland

http://www.britishnewspaperarchive.co.uk/       $
The British Newspaper Archive – includes papers from Ireland and Northern Ireland

https://www.irishnewsarchive.com/       $
Irish Newspaper Archives

http://www.nli.ie/en/homepage.aspx       Free
National Library of Ireland – Catholic Parish Registers digitized microfilm not indexed

https://www.irishfamilyhistorycentre.com/       Some free
Irish Family History Centre

https://www.johngrenham.com/       Free
Irish Ancestors

http://freeirishgenebooks.blogspot.com/     Free
E-book site

https://www.irelandxo.com/         Free
Ireland Reaching Out is a volunteer-led, non-profit organization that enables people of Irish descent to connect directly with their place of origin in Ireland, and engage with the people living there today.

Newspapers
https://www.newspapers.com       $
Historical & Recent Newspapers (US, Australian, Canada, England, Ireland, Northern Island, Panama)
If you belong to ancestry.com or Fold3, cost is reduced.

http://www.genealogybank.com       $
Historical & recent Newspapers (American, Irish-American, more…)

http://archives.com       $

http://NewspapersArchives.com       $

http://bklyn.newspapers.com/title_1890/the_brooklyn_daily_eagle/       Free
The Brooklyn Daily Eagle (1841- 1955)

http://fultonhistory.com       Free

http://NYSHistoricNewspapers.org       Free

http://chroniclingamerica.loc.gov       Free

http://ProQuest.com
Available through many libraries

http://news.google.com/newspapers       Some free
Google News Archive