As investors, venture capitalists and entrepreneurs search for the "Next Big Thing," this week's Techonomy conferencein Lake Tahoe, Calif. brings together companies whose innovation is driving economic growth.
In addition to giants like Google and Microsoft , it also shines the spotlight on startups, which could be game-changers within their sectors.
Here are a couple we'll have our eyes on this week. You should, too.
Chris Hughes was a co-founder of Facebook and ran political organization site MyBarackObama.com—now his latest venture aims to help people help the world.