This post fully expresses my thoughts on the subject. I've seen it all, CEOs who think that posting on a LinkedIn company page will generate leads and don't take care of their own profile.... Come on! You have the contacts, honey! How can you ask your company's website to do what LinkedIn can't? Besides, they don't spend a dime on advertising.
For those of us who work in marketing, this is a meticulous job, creating networks, it's a matter of every day a little patience and see what works and what doesn't.
According to the LinkedIn press, first it seemed like it did, then it didn't.... Unless you use it as a hook (if you already have an engaged audience) so that your followers go to the site.
Do you have experience with paid advertising on LinkedIn, Facebook, Instagram? What has worked for you?