This week, in a nudge at Facebook's mobile ad struggles, Twitter said its mobile ads are booming, already outpacing web ads and on track to keep growing.

In an effort to revive their brand image and win back market share from Coke, Pepsi is launching a new, hip partnership with Twitter that will include free songs for download and live-streaming music concerts.

The company is set to make around $250 million next year -- but should it be making much more?

There's been a lot of talk recently about privacy protection on the web. The White House and tech companies say they want to protect you, but can they?