A free citation manager and academic social network. It helps you organize your sources, collaborate with other researchers, as well as stay up-to-date with the latest publications.
It is both, web-based (2Gb of Free Online Storage) and desktop-based, as well as accessible via mobile application, giving you access to your references from anywhere online. Your library is backed up in the cloud and always available to you. You can also import sources from other citation management softwares (Endnote, Zotero, etc...)
Via Mendeley Web, you can connect with other researchers online, share your papers and find relevant publications based on your interests.