To use Zotero with Google Docs, simply open Google Docs on a browser that has the Zotero Connector installed. The first time you open Docs you will see a message about adding Zotero. Once you have agreed, Zotero will appear in any Google Doc:
Once Zotero appears in Google Docs you have several options:
1. Add/edit citation - click here to add a citation.
2. Add/edit bibliography - click when you're done writing to add your bibliography.
3. Document preferences... - select to change your citation style.
4. Refresh - if you add or remove any citations after adding your bibliography, it should automatically update. However, if it doesn't, click "Refresh" to update.