jack dorsey

Twitter's shares were down 5.35 percent.
The company also reportedly plans to add two new board members.
You won't believe how CEO Jack Dorsey made his point.
The social network is experimenting with advertisements for logged-out users.
Here's how the chief executive of both Twitter and Square gets it done.
"You might like a lot of things, but not everything can be your favorite."
You've got to get up pret-ty early if you want to make it to the top.