Almost three years ago I wrote about how Amazon UK had stopped shipping a lot of goods to Ireland. At the time it was very hard to get any tangible details from Amazon about the change in policy. Eventually an answer of sorts was forthcoming, though it took a lot of effort to get it! Basically Amazon were concerned about the Irish (and EU) legislation affecting the recycling of electronic goods. What was incredibly annoying was that Amazon managed to apply the same criteria to a much wider range of products than just electronics.
In any case as of a few days ago the restriction has been lifted. I've successfully ordered a Logitech Harmony remote control (I'd been thinking of getting one for ages) and they took the order without any issue. Admittedly the Amazon site still has lots of references to delivery restrictions on the product details pages and the change only applies to Amazon not their marketplace vendors.
It would be interesting to know why Amazon took so long to make this change in policy, but it is very very welcome. More competition is always good.