Volunteering through agencies

There are number of web sites that provide you possibility to apply for volunteering job through them. Just google volunteering Dublin or Ireland and you will find big variety of choices.
I would recommend to look at the
www.volunteeringireland.ie
They have a very nice and understandable interface. First thing you need to do is to register with them, specifying your qualifications and your interests.

They have number of possibilities working in:
Office based environment
With children
Managers
Teachers
Art and Craft
And others

Volunteering Ireland serves like moderator between you and companies that would look for people. Most of those companies connected with different charity projects and organizations. It is a good chance to bring value to people and get working experience.

Remember that to work with children you have to go through special check by Garda. They then issue permit, which is specifically to the certain position and it takes around 7 weeks to get it.