Instagram is a social media platform that emphasizes photo and video sharing via its mobile app
LinkedIn is a business and employment-oriented online service that hosts a community of professionals and allows them to interact with each other.
Snapchat is a multimedia messaging app where you can share snaps - pictures & messages that are only available for a short time.
Pinterest is an image sharing and social media service platform designed to enable saving and discovery of information on the internet using images and, on a smaller scale, animated GIFs and videos, in the form of pinboards.