Zotero is a free tool that collects, manages and cites research sources. It stays on your web browser where you do your work and it's easy to use. It's being downloaded as a firefox extension, used with the chrome and safari browsers or used as a standalone tool. It allows you to attach pdfs, notes and images to your citations, organise them into easily searchable collections for different projects, and open office using any of over 2800 citation styles. references can be added to a zotero library in many different ways: directly from databases, journal websites, google scholar or the library catalogue, by referencing file import ( for example from an Endnote library), by dragging in pdfs from your hard drive, and by entering them manually.