You can add PDFs, images, audio and video files, snapshots of web pages, and really anything else. Zotero collects all your research in a single, searchable interface. Select multiple sources and insert formatted reference list in your paper/report while writing it (MS Word plugin).
Whether you're searching for a preprint on, a journal article from JSTOR, a news story from the New York Times, or a book from university’s or public library catalog, Zotero has you covered with support for thousands of sites. Zotero is the only research tool that automatically senses content, allowing you to add it to your personal library with a single click. You can use it to quickly grab and re-use citation from our public library “Soil Electrical Geophysics”. It lives right where you do your research - in the web browser itself. Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share your research sources.