How is my local public library using social media?

My Public Library is  Hornsby Library.

Hornsby Library is a part of the Hornsby Shire Council. It is the main library of all the four branches of Hornsby Shire Library and Information Services. Hornsby Shire Council, the parent organisation has its social media accounts on Facebook, Twitter, You tube and Instagram. Below are the links for each of them:

Facebook: https://www.facebook.com/HornsbyCouncil

Twitter: https://twitter.com/hornsbycouncil

You Tube: https://www.youtube.com/user/HornsbyCouncil

Instagram: https://www.instagram.com/hornsbycouncil/