I have not yet completely explored this site, but it looks as if it might be a good source for those researching, or want to learn how to start looking for their Irish ancestors.
The Researching Irish Surname page is filled with links to other sites including one to a surname list where readers can look for others who are researching the same names. If none are found, a link is provided so that surnames can be added.
As usual with any website that attempts to cover all of the bases, there are some dead links that have not been removed, or updated. However, anyone researching Irish surnames, or who requires some instruction on how to begin should explore this site. Be sure and add it to your bookmarks. It's too large to view in one sitting, and you will want to return.