Social Networking Sites

I find Facebook and Twitter to be a little similar as far as posting status, pictures etc. On the other hand, Instagram is very different, the social networking site is more for posting pictures, liking and commenting, Instagram doesn't have the status update option like Facebook and Twitter, Instagram users can post pictures, caption along with the location. Though, LinkedIn is a social networking site, it is very different than the other social media sites which I mentioned. LinkedIn is a professional networking site, where usually job seekers network with recruiters/employers or even employees from different companies.