Writing4All is a resource for Irish writers of all shades and persuasions.They call themselves 'a creative writing community where Irish writers can share and develop their work'. In fact, as it's web-based, their general info is open to all.
They have sections on events, competitions and writing news, and there is a forum you can join. They are also running a short fiction competition with a first prize of €1000.
Their Getting Started section has advice-essays from Carlo Gébler (the novel) and Gabriel Fitzmaurice (poetry) and now I have one there too, on the short story: 'Tips on how to get started as a short story writer'. You can read it here.