Social Media Insights. Get up to speed on social media advertising with these videos. Facebook If you don't remember anything else remember this: Targeting is supremely important You want simple, eye catching ads Track the results!!! Twitter If you don't remember anything else remember this: Vast majority of users are on mobile devices. Great interest targeting. Don't buy followers. LinkedIn Pros: White collar audience. Robust targeting options. Cons: High cost per click. Limited volume.