Amazon.com is quietly inviting drivers for its new "on-demand" delivery service to handle its standard packages, as the online retailer known for low prices and razor-thin profit margins looks to speed up delivery times and tamp down its growing multi-billion dollar logistics bill.

Two years ago, Mark Zuckerberg took the stage at the Mobile World Congress, an annual industry gathering held in Barcelona, to reassure phone companies that Facebook is their natural ally.

Apple just made it easier for some folks to trade in their old iPhone for a newer model, and to do so for less than $15 a month in some cases. 

Twitter Inc. is now bigger than its rival Facebook Inc. ? in Japan, at least.