Successful companies often keep their logos forever, relying on decades of branding, but Facebook has recently decided to buck that trend. The social media giant announced a brand new logo instead of the lowercase "f" that it used for so long. The new logo is simple, just "FACEBOOK" in all caps.
Why the change? The reason that Facebook has given is that they're attempting to create a more recognizable company brand. To that end, they're largely leaving the Facebook app that you use on your phone out of this. It has branding and style of its own. Facebook the corporation is more than just the app or the website that started it all, and they want users to know that.