The Irish Tourist Board has been providing assistance to visitors for years, including an accommodations database which began as a catalogue of approved Bed & Breakfasts, Guesthouses, Farmhouses, Hotels and Self-Catering cottages and is now an efficient computerized database which is accessible online as well as in Tourist Board offices throughout the country. Tourist offices are open year round in the larger cities like Dublin, and seasonally in smaller towns throughout the Republic of Ireland. The information can also be accessed at the Irish Tourist Board website: 

Ireland Tourist Board - Regional Sites