Apps are wonderful tools for learning and fun, but sometimes it's hard for parents to find companies that make kid-friendly apps. Sometimes those recommendations come from odd places, like a random tweet invoking Oskar Schindler. Today's tip comes from just such a tweet, sent by Twitter user @bmf.link is a staggering list of developers from around the world who specifically develop apps for children, including links to each of their websites for further exploring. So get looking, parents! You never know how far down the list your child's new favorite learning app might be.