Facebook, Inc. is a social networking company. The Company is engaged in developing products that enables users to connect and share through mobile devices and personal computers. It offers various services focused on people, marketers and developers. It offers various platforms for people to share their opinions, ideas, photos and videos, and to engage in other activities. Its products include Facebook, Instagram, Messenger and WhatsApp. The Facebook mobile app and Website enables people to connect, share, discover and communicate with each other on mobile devices and personal computers. Its Messenger is a mobile-to-mobile messaging application available on iOS and Android phones. Instagram is a mobile application and Website that enables people to take photos or videos, and share them with friends and followers. WhatsApp Messenger is a cross-platform mobile messaging application and allows people to exchange messages on iOS, Android, BlackBerry, Windows Phone and Nokia devices.