Definitely a work in progress.

History pin

The national Library There is a fair collection of resources online here, but to realy get value out of this for your class you should visit the building.
A general non commercial website on Irish history. There is a lot of material here and it can be easy to get lost.

A nice site with an emphasis on the Leaving Cert

Scoilnet in-service support page for LC history

and, from the same source, the sylabus for ordinary and higher levels

Some blogs fro Kay ....? of Lucan community College who posted these suggestions on the CESI list