It has helped me get interviews and with networking yes. But I find the downside to it is if people are on there who are at your current place of employment or just people you know and don't want them knowing you are looking for something new, you can't just announce you are looking for a new job, so private messages to link or calling someone if their number is on there work out better.Are you on LinkedIn? If so, is your profile complete? Has LinkedIn ever helped you with networking, landing a job, etc?
My profile isn't complete so I need to do that at some point. Not sure if I want to put my whole resume on there though...