Mendeley is a free reference manager and academic social network that can help you organize your research, collaborate with others online, and discover the latest research.

With Mendeley, you can:

• Create and manage citations of books, articles, videos, and more
• Import citations from many databases 
• Extract metadata from imported PDFs
• Collaborate with other researchers online
• Find relevant papers based on what you’re reading
• Highlight and annotate papers and share those notes with others
• Organize your sources using groups, tags, and filters

It takes a lot of the hard work out of formatting references, leaving you more time for writing and less time stressing about commas. 

Mendeley tips: