Facebook, Inc. operates as a mobile application and Website that enables people to connect, share, discover, and communicate each other on mobile devices and personal computers worldwide. Its solutions also include Instagram, a mobile application that enables people to take photos or videos, customize them with filter effects, and share them with friends and followers in a photo feed or send them directly to friends; Messenger, a messaging application for mobile and Web on various platforms and devices, which enable people to reach others instantly, as well as enable businesses to engage with customers; and WhatsApp Messenger, a mobile messaging application. The company also develops Oculus virtual reality technology and content platform, which allow people to enter an immersive and interactive environment to play games, consume content, and connect with others. As of December 31, 2015, it had 1.04 billion daily active users (DAUs) and 934 million DAUs who accessed Facebook from a mobile device. Facebook, Inc. was founded in 2004 and is headquartered in Menlo Park, California.