Have you heard about RefGrab-It?
RefGrab-It is a plug-in which works with your browser to capture information from a webpage in a form compatible with RefWorks, allowing the data to be imported just like a citation from a database. RefGrab-It also searches the web for further details related to the webpage, using International Standard Book Numbers or Digital Object Identifiers to locate as much additional bibliographic information as possible.
RefGrab-It is available for Internet Explorer and Firefox on Windows, and Firefox and Netscape on Macs. To download it, login to your RefWorks account, select ‘Tools’ then ‘RefGrab-It’ and follow the on-screen instructions.