ust noticed Zotero, a FireFox extension, which can help me collect, manage and cite digital research resources. It can automatically capture citation information from various web sites, including most major academic journal sites. Feature list as put by Zotero developers:
Automatic capture of citation information from web pages
Storage of PDFs, files, images, links, and whole web pages
Flexible notetaking with autosave
Fast, as-you-type search through your materials
Playlist-like library organization, including saved searches (smart collections) and tags
Platform for new forms of digital research that can be extended with other web tools and services
Runs right in your web browser
Formatted citation export (style list to grow rapidly)
Free and open source
Integration with Microsoft Word and OpenOffice
Saves records and notes in any language
Integration with WordPress
The only major missing feature is the ability to automatically synchronize between computers.