Irish Blogger
http://seoireland.wordpress.com/
It is getting easier to blog every day. The number of different web sites where you can open a blog is growing quickly. The latest Irish one is Irish Blogger.
Wordpress is probably the most popular option. Check the ease on blogging there with blogs like SEO Ireland for example.
Blogspot has been here for years, and it looks it will remain a top player in the blogging field. Again a sample of a blog there Irish Jobs in Ireland or Irish Jobs Ireland