The Wednesday Sisters, by Meg Waite Clayton.
I heard of this book through a U of M alumni newsletter - the author, Meg Clayton, is a UM Law School alum. This book is one of the best I've read in a while. The "Wednesday Sisters" are a group of women, mostly mothers, who get together originally on Wednesdays, in a park in Palo Alto, CA, and eventually they all start writing and their meetings become a writers group of sorts. Two of the 5 women write novels that get published, and the rest write stories that get published as well. The book follows the women through the trials and tribulations of their lives, and the ending is just about perfect, in my opinion.
5 stars out of 5.