The Social School: LinkedIn
A lot of small businesses feel that LinkedIn isn’t worth investing in, but it’s the world's largest professional network. Besides basic networking, it can be helpful for brand building with LinkedIn Groups, offering industry-specific communities to connect with peers and potential clients.
Also, because LinkedIn is such a powerful network, it's often easier to rank your LinkedIn page on Google than your website.
Advertising on LinkedIn is great for B2B businesses and provides different targeting options than other social media platforms because you are able to narrow down your reach based on job, title, company, and industry.