We will be visiting a friend in Limerick after leaving the Dingle peninsula on the way to County Clare and later, Galway. Your book contains nothing on Limerick, so I'm in need of recommendations on places to stay, and places to share a meal with friends.
Is there a reason your friend in Limerick can't advise you?
Get another guidebook. The Rough Guide Ireland.
The Irish Tourist Board has good accommodation listings, tied into their national rating system: http://www.ireland.com/en-us/accommodation/.