Impressive Firefox extension helps you collect bibliographic & research information from sites like Amazon, Library websites, Journal sites, etc. The ultimate bibliography building tool: you no longer need to copy all this out of books or off web pages ... Zotero can export/import BibTeX, RIS, Refer/BibIX, RDF, MODS, etc. and can even create APA, MLA, or Chicago style citations pages for import (as RTF) into your favorite rich text editor!