, AccessMyLibrary opens up Gale's large and ever-expanding vault of digital content to the world, giving you direct and easy access to those resources right from search engine results. Or, you can come directly to AccessMyLibrary.com and browse its nearly
EndnoteWeb, RefWorks, Connotea, CiteULike, Zotero, Mendeley. Nice summary of the state of the art by Martin Fenner. Conclusion - not much to choose in some ways - personal preference!