Linkedin Advertising is a complete waste of money. Complete. Utter worthlessness. I once left a campaign running by accident and it cost me $1500. Oops. What did I get from that? Nothing. Not a thing.
I do a fair amount of articles, or try to, as I am trying to be better at putting content on the company site in general, and then cross posting to things like medium, linkedin, and then linking back to our site. Also, my tactic is "the more you look like you're an expert in your field, the more people listen" so I connect with as many people in my industry as I can. Yes, I have a few people say "Have we met?", to which I respond, we haven't but I was hoping we could in the future, or that I am very much an open networker and was hoping to expand my network and hoped that they didn't mind my reaching out.
With Linkedin the more connections you have the more you can see. Simple. So it makes sense to have a large network. I have... 4980 connections (that damn last 20 I'm going to get!) and I'll use it as a database to look people up, find them, try and add them and either message from there, or send them an email. Email is prefered as I can track this more.
I've tested; facebook, twitter and linkedin for marketing and advertising. Same campaigns etc. and facebook gets easily the most "responses" as in likes, or clicks through to site, but the audience is broad and we're niche, so useless for real targeting.
I found the best way to reach my audience is direct email.
My go to tools are: Streak for Gmail (pipeline management), Mixmax for Gmail (used for mail merges, campaign sending and email tracking), and clearbit/ zapier to join them.
I add a contact I've found on Linkedin in a Uni I wish to approach, create a "Box" in streak for that uni that filters all emails from that domain to that box to track it. Zapier then knows I've added a contact to a box and takes that email, looks it up on clearbit (finds all info about a person it can online) and creates a contact in my Google Contacts, in a certain contact group, which is then used to email campaigns from Mixmax.
I can then see how many people opened it, who opened it the most etc. Which, in this case was our latest news. So not expecting a reply, but the ones who have opened it most (one has 4 times) I'm like ah, I'll drop her an email or phone her to follow up...
Sorry, long post there...
Not saying I'm right, depends on your audience and what you want to get out of it. Just try some things and monitor the efficacy.
Pancake.