These are an excellent source of information with regards to charitable activity in Northern Ireland. NICVA
is the Northern Ireland Council for Voluntary Action and represents the interests of over 5000 voluntary and community groups. The knowledgeable staff may be able to help you find social service charities in your area.
www.communityni.org is run by NICVA and is a website for promoting and sharing the information on the voluntary and community sector. This website may give you a deeper understudying of the charitable sector as a whole in Northern Ireland.