Zotero is a 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.
Bibliography reference manager. The native file format used by JabRef is BibTeX, the standard LaTeX bibliography format.
Weava is a collaborative workplace for research offering an easy way to highlight, organize and collaborate on your research articles.
Program for organizing and commenting textual citations from texts (books, articles, or other published works) for use in producing scientific or academic publications.Discontinued
As the developer stated in February 2017, the software is no longer developed: https://sourceforge.net/p/textcite/discussion/616111/thread/91d6f4bc/#e988 Last version, 1.4, released in September 2009, can be still downloaded from the official website.