I came across this add-on (XPI package)for firefox called Zotero:[zoh-TAIR-oh] is a free Firefox extension to help you collect, manage, and cite your research sources, not a reference manager like Endnote making a reference list, etc... but more like a small database collecting useful references/links, more a kind of bookmarks extension offering a integrated interface inside you browser where you could store your books and articles information.