Ancestry.com

http://www.ancestry.com/

Commonwealth War Graves

http://www.cwgc.org/

Griffiths Valuation

http://www.askaboutireland.ie/griffith-valuation/index.xml

The Griffiths Valuation – some general guidance

 http://rudden.org/?page_id=109

Irish Census 1901 & 1911

http://www.census.nationalarchives.ie

History of County Cavan an interesting overview

http://rudden.org/?page_id=115

Information on County Cavan

https://www.genuki.org.uk/big/irl/CAV

Irish Genealogy – Civil Records

https://www.irishgenealogy.ie/

Maps and Aerial Photographs

http://maps.osi.ie

Rudden forum on Ancestry.com

http://boards.ancestry.co.uk/thread.aspx?o=0&m=56.1.1.2.1.2&p=surnames.rudden

The Plantation of Ulster

http://en.wikipedia.org/wiki/Plantation_of_Ulster

Tithe Applotment Books

http://titheapplotmentbooks.nationalarchives.ie

Also see our videos here