This extensive site has a lot of online resources. It is aranged by area of interest and includes:
• The Clans of Mayo
• Emigration from Emigrant Letters
• The Famine in Mayo
• Estate Rental Records
• In Humbert’s Footsteps: 1798 & the Year of the French
• Local Studies Projects
• Genealogy Resources
• Land Surveys & Maps
• Irish Tourist Association Survey, 1942
• Local Journals
• Mayo Maps includes online access to a variety of maps
• 1838 Ordnance Survey Maps (Six-Inch, first edition)
• 1830 Bald’s Map of Mayo (surveyed 1809-1816)
• Lynch-Blosse & Garret More Estate Maps
• Sir Robert Lynch-Blosse Estate in the Barony of Clanmaurice 1811
• Sir Robert Lynch-Blosse Estate in the Barony of Clanmaurice 1819
• Sir Francis Lynch-Blosse Estate in the Barony of Carra
• Miscellaneous maps of Sir Robert Lynch-Blosse Estate
• Maps of Garrett Moore Estates
• Mayo People
• Michael Davitt
• Newspapers
• Photographic Archive (not online)
• Postcard Collection
• Schools’ Folklore Collection
• Special Collections
• War of Independence
• Useful Links