This new site is like an ebay for mom's. You can buy and sell baby and kids toys. It's new but definitely off to a good start. You can find things by category and even things like a pair of heels for date night.
I would definitely check it out. I just made my account. I know I have stuff sitting around I need to get rid of. And as a bonus you get the exclusive offer for 3 commission-free sales when you first register. So you have nothing to lose and a bit of money to gain :)