And while many parents want to share their kids' first day of school snaps with family and friends, a digital safety expert says posting these photos online opens the door to online security concerns.

we rounded up some of our favorite first-day-of-school photos celebrity parents shared of their kids this year. We're going to let you in on a little secret: Celebrities like a first day of school ...

"It's still quite the 'event' even after all those other 'First Day of School!' times with our big kids," Sarah Palin wrote ... posting four photos of her son grinning widely and wearing glasses ...