Jay-Z Ditches His iPhone Just in Time for His Big Samsung Ad

MTV Finally Brings Its Shows to Your iPhone and iPad

Twitter Signs Its Second Big Ad Deal, This Time With WPP

Every Business Cliche Ever, in One Excellent Toast From Super Angel Chris Sacca

What Happens When You Wear Your Computer? D11 Speakers Sound Off. (Video)

What if Hulu Really Isn’t for Sale After All? (Video)

Twitter and Its Silicon Valley Frenemies (Video)

No, Dick Costolo Isn’t Going to Talk About Twitter’s IPO (Video)

Why Twitter Loves TV (Video)

Facebook COO Sheryl Sandberg Leans In at D11

Like That TV Ad You Just Saw? Twitter Wants to Show You Another One.

How Many Users Does Tumblr Really Have?

Why Yahoo Doesn’t Think Tumblr Has a Porn Problem

Time Machine! Tumblr’s David Karp in 2007, Age 21.

Microsoft’s Anti-Google Campaign Gets a Boost, From Google

SoundCloud Starts Pushing Its Own Native Ads Out of a New York Outpost

Dick Costolo Tweets Out His University of Michigan Commencement Speech

Twitter Gets a Vote of Confidence — And a Big Check — From Madison Avenue

FTV, Elevation Put $38 Million Into Advertising Dashboard MarketShare

Twitter Music Is Here Today, and This Time You Can Use It

Twitter Tries to Make Its Ad Pitch More Googley, With Keyword Targeting