How is my local public library using social media?

The following are the two social media sites promoted on Northern Beaches Libraries webpage which they share with Northern Beaches Council (webpage https://www.facebook.com/WarringahCouncilLibrary):

https://www.facebook.com/WarringahCouncilLibrary

contains recommendations and reviews by patrons, advertises community events, exposes community history such as by showing old photographs from the history collection – e.g. of the local surfclub in years past, contains comments from others involved in community events – like the Tiny Doors Project. Contains info about new collections –like the digital picture books collection for children. Promotes changes to library hours and also the contact details of all the branches.

https://www.instagram.com/explore/tags/northernbeaches2017/

This Instagram account appearing at Northern Beaches Libraries webpage is actually an account combining any photos that anyone has ever taken of the Northern Beaches area in general (landscapes, people, markets, real-estate, the ocean activities and resources) and who has used the hashtag “#northernbeaches2017”.