Marketing to my Ideal Customer

Hey Ladies
I need some feedback. My ideal customers are mothers who have children starting school - Kindergarten, preschool, etc - and empty nest moms who aren't sure about their life's calling and how it connects to their career. I want to help these moms discover their calling and find a career or business that connects to it.

My challenge has been figuring out where these moms hang out, what they buy, what they're reading. Any thoughts on the best publications, websites, etc I can advertise in to capture this demographic? Any feedback is appreciated.