On your blog, define the difference between post reach and post engagement. Why is knowing the difference important?

    Post reach is how someone stumbles upon your page, whether this happened organically such as scrolling through their news feed or visiting a page. Another example of the post reach, viral reach, would be an extension of the original term. In example, one of your friends comments on a post and you saw the post and found the page that way. Engagement would be how many people are discussing your page currently such as the people whom have shared, liked, commented etc. So the difference is pretty evident, post reach is someone whom finds your page, and engagement is someone liking, commenting, or sharing your page. 

After defining the terms, describe how can a business can use Facebook Insights to better serve their customers.

    A business on Facebook can can monitor their insight as a way to determine the success of their business over time. This can be viewed from ongoing progress or currently, and help figure out the best ways to promote their business. They could do this by taking a look at whom their business is attracting and pulling in (demographics, psycho-graphically etc).