Zotero is described as 'Free, easy-to-use tool to help you collect, organize, share research and cite your research sources directly in your favourite word processor, with 300 MB free online storage' and is a very popular research manager in the news & books category. There are more than 50 alternatives to Zotero for a variety of platforms, including Web-based, Mac, Windows, Linux and iPhone apps. The best Zotero alternative is Mendeley, which is free. Other great apps like Zotero are Qiqqa, JabRef, EndNote and Paperwork.