A new collaboration between the Geological Survey Ireland, National Monument Service, National Parks and Wildlife Service and the Discovery Programme is making high resolution topographic data freely available to the public.
The web viewer is located here. Both terrain and surface models can be downloaded at 1 metre resolution.
There is a short instruction video on the site for downloading and importing into a GIS.
Left-clicking on the map brings up some metadata: survey location, data provider, resolution, date of acquisition and RMS error.
This is a brilliant initiative for researchers across many fields and, fingers crossed, more data will be added soon. A number of other organisations have expressed an interest in making data available through this site and version 2.0 is already being planned!