I think RIP.ie will remain the main one, a bit like Google where it becomes the fault... maybe even it'll be a verb? did you rip.ie it?
Those saying just check the church newsletter don't understand Irish funerals. My grandmother died on a Monday and was buried on Wednesday. Hundreds of people came, many who had never met her but my dad is one of 10 and they were a well known family in the village. People travelled from hundreds of miles away too, not family but friends of the bereaved.
Anyway back to the charge... in the grand scheme of things it's not a huge fee and it'll be lumped onto the funeral director's bill so I don't think most families will say No to it or even notice it.
Before rip.ie the funeral notices in the newspapers were a lot more... those had to be paid for too.