Mendeley and Dropbox
Mendeley - good with PDFs UPDATE: the technique described below does not work reliably and I would not suggest trying it. D'oh. Mendeley, the bibliographic tool with some nice community features, has one major advantage over rival web-based freebie Zotero: its handling of PDFs. Mendeley desktop can often extract bibliographic data simply from having a PDF dropped into the application; in other cases it can find enough information its Google search facility to fill in the gaps. It also saves the PDF in your library and syncs this with your web account and from there to Mendeley desktop on your different computers. However you 'only' get 500mb of storage with the free Mendeley account, and occasionally syncing the PDFs can be slow. For the impatient or parsimonious, this is where Dropbox rides to the rescue. The following video shows how to enable Dropbox to take the strain out of syncing your Mendeley library PDFs (Mendeley will sync the other bibliographic info). Click full