How does it work? At the basic level, students can "drag and drop" research papers into the site at mendeley.com, which automatically extracts data, keywords, cited references, etc, thereby creating a searchable database and saving countless hours of work. That in itself is great, but now the Last.fm bit kicks in, enabling users to collaborate with researchers around the world, whose existence they might not know about until Mendeley's algorithms find, say, that they are the most-read person in Japan in their niche specialism. You can recommend other people's papers and see how many people are reading yours, which you can't do in Nature and Science. Mendeley says that instead of waiting for papers to be published after a lengthy procedure of acquiring citations, they could move to a regime of "real-time" citations, thereby greatly reducing the time taken for research to be applied in the real world and actually boost economic growth. There are lots of research archives. For the physica