Is Uber really worth billions of dollars?

The ride-sharing firm is yet to make a profit, but it may attract a sky-high valuation when it floats.

How Wall Street Middlemen Help Silicon Valley Employees Cash In Early - WSJ

Is Uber really worth billions of dollars? - BBC News

Is Uber Really Worth $62 Billion? - Barron's

Uber Competitors - FourWeekMBA

What Uber founder Travis Kalanick could do with his $1.4 billion

Uber's Journey: How a Simple Idea Turned into a Multi-Billion Dollar Business

The Intentional Network Effects of Uber

Uber aims for $90bn stock market debut - BBC News

Uber makes first operating profit as driver shortage eases

Is Uber Worth $17 Billion?

Hubert Horan: Can Uber Ever Deliver? Part Thirty-One: Uber's Legitimate Cumulative Losses Top $32 Billion; P&L Improvements Driven by Much Higher Fares and Multi-Billion Dollar Transfers From Drivers to Shareholders

Uber shares sink on stock market debut - BBC News

From Zero to One Billion: The Uber Success Story

Uber's Secret Gold Mine: How Uber Eats Is Turning Into A Billion-Dollar Business To Rival Grubhub

Uber shares tumble as profit figures disappoint Wall Street - BBC News