discord.com is a free voice, video, and text communication platform designed for creating communities. Originally built for gamers to chat while playing, it has grown into a versatile social hub where users organize into invitation-only or public "servers" to connect over shared interests, hobbies, and friend groups through live chats and media sharing.

a social network basing on photo sharing

Tumblr is a popular microblogging and social networking platform that allows users to post multimedia and other content to a short-form, customizable blog.

LinkedIn is a global professional networking platform where individuals and businesses connect, share expertise, and explore career opportunities. It allows users to build a detailed professional profile, engage with industry content, and access a wide range of job listings and business insights.

The blue and red idea is a Social Networking Platform. Users can share posts, photos,music,thoughts and videos