Whether you're still officially a girl or just a girl at heart, you will love this site. A Mighty Girl bills itself as "for smart, confident and courageous girls," and its content delivers. From their Top 100 Read-Aloud Books for Mighty Girls to their cool collection of curated products (Rosie the Riveter socks, anyone?), it's clear that the creators do their homework to find the most empowering books, movies, tv shows and toys for girls who are being raised to kick ass. This is the perfect go-to site for a little sister gift, or if the girl you babysit needs some variety in her Princess stage. In Founders Carolyn Danckaert and Aaron Smith's words, "Girls do not have to be relegated to the role of sidekick or damsel in distress; they can be the leaders, the heroes, the champions that save the day, find the cure, and go on the adventure."