
Cost: free; no UMD-affiliated account needed
Writing Plugins: Word, Open Office
Browser Integration: bookmarklet, no extensions
Groups: Public or private
Desktop Clients: Windows, Mac, Linux
Apps: iOS
Mendeley is a citation management desktop client based primarily around the cultivation of PDFs. You can import PDFs, highlight and annotate them, get readership statistics, and even choose a folder on your computer for Mendeley to "watch" for new content. Mendeley also gives you the opportunity to search across papers cultivated by other Mendeley users. Owned by Elsevier.