DUBLIN CITY MARATHON - ACCOMMODATION AND SPECIAL HOTEL AND BED AND BREAKFAST OFFERS - DEADLINE

Ireland Hotels have teamed up with Dublin City Marathon to do a special - go here
http://www.irelandhotels.com/DublinMarathonOffers/

There is also the official website of the IHH with a guide to hostels in Ireland as well as online bookings for Ireland hostels.
www.hostels-ireland.com/