ZoteroBib is a free service that helps you build a bibliography instantly from any computer or device, without creating an account or installing any software.
Storage of PDFs, files, images, links, and whole web pages. Automatic capture of citation information from web pages. Playlist-like library organization, including saved searches & tags. Integration with WordPress and MS Word. Interface in many languages.
M. Koolen, G. Kazai, and N. Craswell. WSDM '09: Proceedings of the Second ACM International Conference on Web Search and Data Mining, page 44--53. New York, NY, USA, ACM, (2009)
K. Nakayama, T. Hara, and S. Nishio. Proceedings of the Workshop on Semantic Search (SemSearch 2008) at the 5th European Semantic Web Conference (ESWC 2008) , June 2, 2008, Tenerife, Spain, volume 334 of CEUR Workshop Proceedings, CEUR-WS.org, (2008)