A while a go I wrote about tools for managing your LaTeX bibliography. Despite the fact that the tools I described help managing your LaTeX bibliography collection, it still did not help much with managing the tons of PDFs files you end pilling up when doing research on a particular topic. BibDesk has now the ability to attach files to entries, Zotero with its ability to store snapshots is still the closest thing I have found so far. However, a friend just pointed me to Papers, a Mac tool—yes it is just available for Mac—for managing your digital library of papers. Very much like iTunes, it allows to streamline your search, reading, organizing, and writing—there is a very interesting webcast by the creators of the software. If you have a Mac, it is worthwhile to give it a spin.