If LinkedIn is the social media of your choice and you want to be an influential person on the platform, it all comes down to you.
While LinkedIn is indeed a social networking platform dedicated for professionals, and it's a lot quieter there than it is on Facebook, but still, it's more than just what it seems. If you use it well, LinkedIn can be one great way to generate leads. To some, it can even be the greatest among all other social networks.
And the best of all, it won't cost you anything.