When it comes to marketing yourself, you probably don’t take as much advantage of LinkedIn as you should. With over 400 million professionals in the network, LinkedIn is the mother of all resumes, put up on the World Wide Web for display. And it seems easy enough: Login, stay active, and connect. These are the exact baby steps you need to take to make your work known to the professionals in a similar bubble, stay connected, and eventually build contacts. But, first, you need a marketing plan.