The Cork City Library under the auspices of the Cork City Council, on its Cork Past and Present-Genealogy has wonderful guide on where to find genealogical information in relation to Cork. This website:
Cork Past and Present is a fantastic example to other libraries and institutions with an interest in local history and genealogy.
Here is the “About US” from the Cork Past and Presetn website:
Cork Past and Present is an online service of Cork City Libraries, providing information on Cork’s history, culture, places, people, and events. The site focuses on Cork city and its surrounding areas, providing new textual material as well as digital images, including local photographs, drawings, maps, and advertisements. This continually expanding site, which began in 2004, has approximately 200 pages and about 300 images.