Thank you for your message.
The Clare County Library is an excellent resource for family history research. http://www.clarelibrary.ie/eolas/coclare/genealogy/genealog.htm
Some other sites which may be helpful are:
The National Archives of Ireland http://www.nationalarchives.ie/genealogy1/genealogy-records/introduction/
The National Library of Ireland http://www.nli.ie/en/family-history-introduction.aspx
The National Archives UK ? genealogy search: http://www.nationalarchives.gov.uk/records/looking-for-person/
Irish Newspaper Archives: http://www.irishnewsarchive.com/
Limerick Genealogy: http://www.limerickgenealogy.com/
Remember to post as much information as you can with regard to the people you are researching. The more information you post, the more likely it is that one of our volunteers will be able to advise or assist you. Also include information concerning which sources you may have already used so others may further your search.