You've probably seen the Findit@WWU button in some article databases that allows you to locate the full text of an article online. Zotero allows you to use the same feature to access WWU subscriptions.
To set up Zotero to access Findit@WWU click "Edit" then Preferences on a PC or "Zotero" then Preferences on a Mac. Go to Advanced, then paste this url into the "Resolver" box:
http://na01.alma.exlibrisgroup.com/view/uresolver/01ALLIANCE_WWU/openurl?
Click OK. Once you've set this up, you can click the Locate button on any citation you're viewing to search for the item online.