BlueSky is a microblogging platform where users can post short text updates, images, and videos, similar to X/Twitter. These posts, often referred to as “skeets,” allow for quick and easy sharing. The service is operated by Bluesky Social PBC, a public benefit corporation based in the United States.

LinkedIn, launched on May 5, 2003, by Reid Hoffman and Eric Ly, is a social media platform centered on business and employment. Available on both websites and mobile apps, it has been a Microsoft subsidiary since December 2016. LinkedIn is mainly used for professional networking and career development, enabling job seekers to upload their resumes and employers to list job openings.