Moms are important. Not just on Mother's Day, either. But, this year, we teamed up with our pals at Parenting.com to put on a little photo challenge. We asked you to go out and capture the meaning of motherhood.The resulting submissions were, as always, excellent. There were touching portraits and intimate moments captured with skill and tact. Even some of the less-than-technically-perfect images were full of so much expression and emotion that we were touched to look at them.