Professional organisations/resources

Chartered Institute of Editing and Proofreading (CIEP)
Editors’ and Proofreaders’ Alliance of Northern Ireland (EPANI)
European Association of Science Editors (EASE)
International Committee of Representatives of Indexing Societies (ICRIS) – has a full list of indexing societies around the world.
Publishing Ireland
Society of Indexers (SoI)

Other editorial resources

UK-based editor Louise Harnby has lots of wonderful resources for editors and proofreaders, especially if you’re just starting out. Start here. Or read her blog in the starting out, marketing or training categories.

Katherine O’Moore-Klopf, a medical editor based in the US, provides a Copyeditors’ Knowledge Base.

The Indexer (The International Journal of Indexing)

Training

Publishing Training Centre (PTC). See especially the online/distance learning courses Essential Proofreading and Essential Copy-editing.

The CIEP offers a fantastic suite of editorial training courses.

Society of Indexers’ training course.

Publishing Ireland runs classroom-based workshops from time to time. Keep an eye on their Training Courses page here.

NUI Galway offers an MA (Literature and Publishing), which includes a module on copy-editing and proofreading.

For writers and authors

Arts Council of Northern Ireland
Children’s Books Ireland
Irish Writers Union
Irish Writers’ Centre
Society of Authors
Society of Children’s Book Writers and Illustrators, Ireland (SCBWI Ireland)
The Arts Council
Words Ireland
Writing.ie

Publishers

A comprehensive (but not exhaustive) list of publishers on the island of Ireland can be found on the Publishing Ireland website.