Has this ever happened to you?
You found a great source for a paper. You forgot to save it and couldn't find it again, OR you forgot to save the bibliographic information for the source (title, author, etc.), and you couldn't write its entry in your paper's bibliography, OR you saved all your source information, but you struggled to get the formatting correct for the in-text citation and reference section.
So you love citation management services - RefWorks, EndNote, Zotero, Papers (for the mac) etc. You love the ease of adding the citations of articles you find to your very own account. You love generating bibliography lists with a few quick clicks. You love how it keeps your citations findable forever. But if you have compared the available services, what makes one of them really stand out from the others?