Starting at $19.95 per month, LinkedIn Premium for Job Seekers is available. These plans include the opportunity to focus on jobs paying $100K or more with specific salary information, the chance to get to the top of the list as a highlighted applicant, and access to the job seeker network, among other things.
LinkedIn You can send InMail to anyone on LinkedIn who is not connected to you. InMails will include some professional background information about you so that the recipient may better understand who you are.
If you're looking to increase your LinkedIn network, getting more than the normal 100 results from a LinkedIn search can help.