Facebook and Time Warner Inc. launched an app designed to help prevent bullying among children and young adults.

The app on Facebook's site is part of a broader partnership the two companies formed earlier this year.

The partnership calls for Facebook, which has more than 750 million users, and Time Warner to use their clout to raise awareness about bullying and encourage kids and adults to stop it.

The app is called "Stop Bullying: Speak Up" and is aimed at those who might witness bullying, on and off Facebook. It offers resources on prevention, and asks children and adults to take an online pledge to speak up if they see bullying.

As of Monday afternoon more than 2,600 of the 3,600 people who took the pledge were adults.

Time Warner's Cartoon Network has been running a "Stop Bullying: Speak Up" campaign since last year.