Please summarize what Linkedin does.

Linkedin is a social platform that business professionals create profiles on and network with other business professionals. It is used to network, career development, and for jobseekers to find jobs. Linkedin has over 900 million users from over 200 countries. Linkedin can be used to post resumes/CVs, organizing events, joining groups, writing articles, publishing job postings, posting picture, posting videos, and more!