President Obama wants to talk to tech companies about how to thwart terrorists.

Lizzie talks with Marketplace Tech producer Meg Cramer about Snapchat.

Mark Zuckerberg says it's the benchmark for turning Facebook's products into meaningful businesses.

How well have you kept up with the week in tech news?

Facebook's is paying $42 for every WhatsApp subscriber.

WhatsApp is one of the fastest growing apps in history.

You've got a business that’s never earned a dollar and someone offers you $3 billion for it. And you say no.