CiteULike is a site you'll like

Here's how CiteULike describes itself: 'CiteULike is a free service to help academics to share, store, and organise academic papers that they are reading. When you see a paper on the web that interests you, you can click one button and have it added to your personal library. CiteULike automatically extracts the citation details, so there's no need to type them in yourself. Because your library is stored on the server, you can access it from any computer. You can share you library with others, and find out who is reading the same papers as you. In turn, this can help you discover literature which is relevant to your field but you may not have known about. When it comes to writing up your results in a paper, you can export your library to either BibTeX or Endnote to build it in to your bibliography.'

Here's how Tara Calashain described it in today's ResearchBuzz: 'Just let me take a moment and sigh with happiness. Huaaaahhhhh. Thank you....Once you've registered CiteULike provides you with a bookmarklet. Add th' bookmarklet to your toolbar. After you've added it, look for an article of interest at one of the research sites CiteULike supports. Supported sites include PubMed, HubMed, CiteSeer, and ScienceDirect. I went to PubMed and found "Balance disorders in the elderly and the benefit of balance exercise." After looking at the abstract and confirming it was something I'd be interested in, I clicked the bookmarklet. I was taken back to CiteULike and given a place to add keywords for the article and some notes. I did that and was kicked back to the article. But now I had a pointer in my library....[Y]ou may be more interested in browsing what OTHER people are interested in....This list is available as an RSS feed. There are also lists of the most popular tags on the right, from networks to game theory to microbiotics. All these are available as RSS feeds.'