Zotero

Zotero - export referenci u 3 formata (za sad): APA, MLA, Chicago

http://www.zotero.org/translators/
http://www.zotero.org/documentation/compatible_standards_and_software

Endnote

opcija: Cite While You Write

del.icio.us

http://del.icio.us/
"social bookmarking site"
tagovi

CiteULike

http://www.citeulike.org/

Connotea

http://www.connotea.org/
"reference management site"
slobodno dostupan, online servis
References can be exported to, or imported from, desktop reference managers
References can be public, private, or shared with a selected group of colleagues