Copious is a personalized social marketplace where people can buy and sell things to each other.

Like Pandora or Spotify, Copious gets smarter about you and your tastes the more you use it to browse the site, follow other users, “love” styles or clothes, and ultimately buy or sell some of those items.

When he got to this country from his native Czech Republic, David Semerad signed up at various online dating sites but didn’t like them.

“I tried several online dating sites myself and found them too stressful,” he says. “There is a long signup process. At Match.com you have to answer 60 questions. Most people lie anyway.”

So he decided to build a dating app “for people who hate online dating.”

In the process he turned dating into a game, which is called, simply, the Game. 

“Every day we introduce you to three people,” he explains. “You choose one. We serve up random icebreaker questions, like, ‘Is life easier for a man or a woman?’

Without doubt, one of the most consequential social changes of the past decade is how much information we choose to share publicly about our lives.

Facebook, Twitter, Pinterest, and blogs are some of the drivers of that change, of course.

But now millions of people also carry a smart phone in their pocket or purse that makes sharing every moment, including their physical location, easy to do.

In 2008, Caroline Hu Flexer noticed how her two-year-old daughter was playing with an iPhone. “At that moment, I saw a big opportunity for learning on mobile devices for kids not even able to read yet or possessing the fine motor skills to use a mouse.”

Since then, the co-founder of Duck Duck Moose has helped create 14 educational apps for iOS and android devices, all of which have won Parents Choice Awards.