In order for some people to get the most out of LinkedIn, there are a bunch of different tools that can be used. Running LinkedIn campaigns is a very successful for some people, especially if they are looking to reach a certain type of person.
Sign up for LinkedIn is free, but there are obviously a number of ways to enhance the experience. People like to mess around with that as much as possible and see exactly what might be available to them.
The first thing a person should always do is make sure that they have a connection with people they actually know. That is the best way to build up a profile and get everything on track as far as that is concerned. No one wants to be in a situation where they are lagging behind in that department.