In addition to Fortune's 40 Under 40 list, we're also keeping our eye on these 20 innovators, young guns from a wide range of industries and backgrounds.
|$2 gas is gone -- prices have climbed for 5 weeks in a row|
|Too much Facebook leads to envy and depression|
|Samsung unveils beautiful new Galaxy S6|
|Michael Jordan joins billionaires' club|
|Costco teams with Citi, Visa|