The Mommy Club, by Sarah Bird. Although I liked the author's earlier books, Alamo House and The Boyfriend School when I read them many years ago, The Mommy Club just didn't click with me.
Mommywood, by Tori Spelling. Though I found her first book, sTORI Telling, rather interesting, she just lost me with this one. I got tired of hearing her complain about how she had to work to support her family; then, for example, throwing a memorial service for her dog, or and over-the-top first birthday party for her son. Her observations about "Mommywood" would be fascinating on their own; but as a story teller, she can't quite decide whether she wants to be a part of it or not.