Here's a trio of TED talks that can be applied to both increasing joy in our lives and developing products for social enterprise. The first is by Paul Bloom on "The origins of pleasure." Bloom talks about why origin stories matter in the valuing of art. He really points to how human beings value labor and the creative process.
Here's a talk by Simon Sinek on "How great leaders inspire action." It should really be titled, "Why we buy what we buy--and how to get people to work for you for free."
"People don't buy what you do, they buy why you do it," he says.
Sinek touts a WHY-HOW-WHAT mandala of attraction citing Apple, the Wright Brothers, and Martin Luther King as examples of how people are drawn to the beauty of a cause more than practical functionality. His theory may seem simplistic in this short talk, but he presents a useful tool for injecting purpose into the language we use everyday to describe what we do.
Neuroeconomist Paul Zak talks about why people love social media, why we trust each other and what makes us generous. He prescribes at least 8 hugs a day as a formula for happiness.