( LiPo Ching )
High-tech farming poised to change the way the world eats

The world's oldest industry -- farming -- has become the focus of big-name Silicon Valley investors and hotshot entrepreneurs, with dozens of companies creating technology to make farmland more productive and farming practices more efficient, such as drones to survey crops or software that calculates grass production for cattle grazing. 
Richard Drew
The only Bay Area-based airline, Virgin America became a publicly traded company Friday in the second-largest IPO from California this year. Yet despite its strong debut on Wall Street, Virgin faces a tough future competing against airline behemoths in a cutthroat industry that leaves little room for the scrappy carrier.
 
 
ANDA CHU
The U.S. expects to earn $5 billion to $6 billion from the federal program that funded flops including Solyndra, bolstering President Barack Obama's decision to back low-carbon technologies.  
 
(Adrian Sanchez-Gonzalez/Getty Images)
Bette Midler to Ariana Grande: Clean up your act

The veteran entertainer complains in an interview that young singers rely too much on selling sex instead of talent.