Accommodation in Dublin / Ireland
Finally there is a free quality accommodation booking service specializing in the Dublin / Ireland area called Almara Accommodations Dublin. They find and reserve Hostels,B&Bs and Hotels at no charge. They have been catering for groups from 1 to 100 for the past 15 years.
If you prefer you can ask them to do an availability search and they will give you the contact details to reserve for yourself. See www.almarabb.com/almaraa.htm or their sister site www.almarabb.com