CiteULike is a free online service that is meant to be used as a help to organise and share the academic papers you are reading and using. How it works? Whenever you see a paper on the internet that is interesting to you, or the work you are doing, you can add it by just doing a simple click.
This will automatically extract the citation details. Since your library is stored on their servers, you can access it from any computer. This is a free service and there is no need to install any software. Also, you can share your library with others. This lets you find out who is reading the same papers and help you discover other materials that you might need. The amount of papers you can find here is huge, as well as all the different categories of papers; anyone can submit any kind of paper. 
