Did ya hear? Pokes are back. The Facebook poke is famously content-free; it’s left to the poker and pokee to assign it meaning. (Gentle hello? “I’m thinking of you”? Sexual harassment?) Even Facebook ...

We can get any Yo user’s phone number (I actually texted the founder, and he called me back). We can spoof Yo’s from any users, and we can spam any user with as many Yo. We could also send any Yo user ...

Single-word messaging platform Yo! has teamed up with Israeli notification provider Red Alert to warn citizens of incoming missile strikes. Users who follow RedAlertIsrael on the app will receive a ...

I ignored the Yo app — yes, the one that lets you send the word "Yo" and nothing else — even after it was covered by Financial Times and the Wall Street Journal. I ignored it when it passed 1 million ...

There's a new iPhone app called Yo. It allows you to chat with a friend, but the only word you can use is yo. That's literally all Yo does. Yo App Raises $1 Million LINDA WERTHEIMER, HOST: Good ...