Zotero's Group feature lets you share references with other Zotero users. It's especially useful for group work and projects.
Making Your Library Public
You can share your library without allowing others to add to it by making it public.
You can send the URL to others so they can view your Zotero library.
Subscribing to Libraries via RSS Feeds
If you've made your library public, others can subscribe to your library feed through something called an RSS feed. You can use RSS feeds to get automatic updates when someone adds content to a library you are subscribed to as well.
To subscribe to a Zotero library RSS feed:
Now you are set up to get automatic updates from the public Zotero library of your choice!