The treat of inequality, the next Bieber, the 2012 tech war

-In a special report on social mobility, The Economist argues that “growing inequality is one of the biggest social, economic and political challenges of our time.”

Fast Company takes a look at “the great tech war of 2012” as Google, Apple, Facebook and Amazon fight for control over the mobile wallet.

The New York Times examines some of ways that “technology is changing the world of medicine.”

The Atlantic’s Quartz magazine looks at how the Age of the Algorithm has given rise to a “Computational Class” focused on profiting from the trading of data.

-While younger Indians are fans of foreign retailers and big malls, their elders are more wary, reports The New York Times.

Businessweek looks at how Americans’ buying power has shifted in the past four years, taking note of our 2012 trend Live a Little.

The Next Web examines “how technology is changing the way we have sex.”

Time outlines the future of news.

Ad Age creates a theoretical five-year plan for marketing.

The New York Times Magazine‘s annual Food & Drink issue looks at everything from whether formal dining is dead to the next hot wine region.

-Fast food is taking more cues from fast-casual, with chains adding more fresh ingredients and foodie touches, reports The Wall Street Journal.

-As more online services connect remote freelancers with clients, we’re seeing “a global online arbitrage of opportunity,” observes The New York Times.

-A new study finds most Americans dislike the idea of online tracking and don’t find online ads useful.

The Financial Times spotlights “a seismic shift in the balance of power between supermarkets and manufacturers,” with retailers losing their edge over brands.

The New York Times has a look at “the sudden rise of the unapologetically not-thin” women in Hollywood.

-A new report finds that more gay and bisexual characters than ever are appearing on mainstream American TV, according to the AP.

The New York Times looks at how the U.S. presidential candidates are taking to the social media sites Millennials love in a bid to connect with younger voters.

USA Today reports that more hotels are catering to the fitness-hungry consumer, with some testing rooms specially designed for workouts, like yoga.

The New York Times looks at an e-commerce startup that cuts out the retail middleman, a trend with the “potential to reshape the way everything from office supplies to eyeglasses are sold.”

The New York Times reports that more cosmetics companies are collaborating with artists.

-With more luxury, specialty options, consumers are switching back from liquid to bar soap, explains Ad Age.

The New York Times notes that Americans are embracing Britishisms.

The Wall Street Journal spotlights five boys who might just be the next Bieber.