Surprised, yes you can have Facebook linked directly to your lists and libraries. Without wasting much of your time, let's see how you can do it.

Go to the Site Contents of the site and click on Add an App:
add app
Install “Infowise Facebook Like Column” to your site and you will see it installed in your site content.

Infowise Facebook Like Column

On clicking on it you can configure your column here:

create or update like column
After the you update click on Create and you will see the following message.
column update successfully
Go to the list and you can see a column created as in the following. As you can see in the following, we have Like and Share Buttons connected to your item.

new item or edit this list in sharepoint
Here you can like your item or share it on your timeline in Facebook where friends and colleagues can see which item you liked or you shared.

Isn't it amazing?

Keep Learning.

Cheers.