The Business of Online Dating

Online dating is a $2 billion-a-year industry. Part of that success has been thanks to the sheer number of websites out there. Besides the big-name sites like or eHarmony, there are lots of  niche sites for people with specific interests -- such as, the matchmaking site for fans of the cartoon “My Little Pony.” Plus, we meet a mathematician who was able to hack his way to true love.