The Zotero connector allows to to save citations to articles, books, webpages to Zotero with ease. Here's how to install the Connector.
By Syncing Zotero, you can access your saved citations from different computers. Here is how you sync Zotero:
To upload a citation into Zotero, you can use the Zotero Connector
Once you have your citations in Zotero, you can create a bibliography. You do that by
In Zotero, every time you add a citation on whatever topic, it is added to your list of citations in Zotero. If you want to organize your citations by topic or assignment, then you can create a collection or folder. To do that you need to do the following:
Adding a citation to a collection
To add a citation to a collection, you simply select the citation, and then, while holding down the left part of your mouse, drag the citation to where it is over the collection that you wish to add it to, and then release.