Bibus is a bibliographic and reference management software. As with other such tools, Bibus allows one to search, edit, and sort bibliographic records. Works with openoffice
Integrating Firefox and Thunderbird into KDE
Merge multiple PDFs into one file
Zotero [zoh-TAIR-oh] is a free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources. It lives right where you do your work — in the web browser itself.