Facebook serves many useful functions. It helps you set up events, send messages to friends and family, and even organize groups. These are all side benefits, though. The main feature—the real thing Facebook wants to sell you—is the News Feed. Too bad it’s so broken that it’s almost useless.

Source: Facebook’s News Feed Algorithm Is Completely Busted – Review Geek

I know some teachers and school districts are using Facebook, and this article is an interesting look at what Facebook shows you versus on what you may want to see.